Hilary is a hard-working college senior. one saturday, she decides to work nonstop until she has answered 100 practice problems for her math course. she starts work at 8: 00 am and uses a table to keep track of her progress throughout the day. she notices that as she gets tired, it takes her longer to solve each problem.
time total problems answered
8: 00 am 0
9: 00 am 40
10: 00 am 70
11: 00 am 90
noon 100
use the table to answer the following questions.
the marginal, or additional, gain from hilary’s first hour of work, from 8: 00 am to 9: 00 am, isproblems.
the marginal gain from hilary’s third hour of work, from 10: 00 am to 11: 00 am, isproblems.
later, the teaching assistant in hilary’s math course gives her some advice. "based on past experience," the teaching assistant says, "working on 35 problems raises a student’s exam score by about the same amount as reading the textbook for 1 hour." for simplicity, assume students always cover the same number of pages during each hour they spend reading.
given this information, in order to use her 4 hours of study time to get the best exam score possible, how many hours should she have spent working on problems, and how many should she have spent reading?
0 hours working on problems, 4 hours reading
1 hour working on problems, 3 hours reading
2 hours working on problems, 2 hours reading
3 hours working on problems, 1 hour reading

Gibson's bodywork does automotive collision work. an insurance agency has determined that the standard time to replace a fender is 2.5 hours (i. e., "standard output" 0.4

Peninsula products has just applied for a loan at your bank. when reviewing peninsula's books for the year that just ended, you notice that the firm uses the fair value option for its bonds payable. you also see that the firm recorded a $55,000 debit in its bonds payable account and a $55,000 credit in its unrealized holding gain or loss"income account. over that same period, interest rates decreased by about 0.5 percent. how should this information affect the bank's decision as to whether to grant peninsula a loan? a : the bank should strongly consider giving a loan to peninsula because the changes in firm's bonds payable and unrealized holding gain or loss"income accounts suggest that peninsula has seen an increase in its credit rating over the past year. b : the bank should put little emphasis on the changes in peninsula's bonds payable and unrealized holding gain or loss"income accounts because these changes are likely the result of the rise in interest rates. c : the bank should hesitate before giving a loan to peninsula because the changes in firm's bonds payable and unrealized holding gain or loss"income accounts suggest that peninsula has seen a decline in its credit rating over the past year. d : the bank should put little emphasis on the changes in peninsula's bonds payable and unrealized holding gain or loss"income accounts because these changes are likely unrelated to either interest rates or the firm's credit rating.

Your uncle is considering investing in a new company that will produce high quality stereo speakers. the sales price would be set at 1.5 times the variable cost per unit; the variable cost per unit is estimated to be $75.00; and fixed costs are estimated at $1,200,000. what sales volume would be required to break even, i. e., to have ebit = zero?