Num. Bob owns a watch repair shop. He has found that the cost of operating his shop is given by
c(x) - 3x2 - 168x + 69, where c is cost and x is the number of watches repaired. How many
watches must he repair to have the lowest cost?
A) 30 watches
BY 28 watches
C) 34 watches
D) 69 watches

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.