Profit-and-loss analysis. jamal decides to mow lawns to
earn money. the initial cost of his electric lawnmower is
$250. electricity and maintenance costs are $4 per lawn.
a) formulate a function c(x) for the total cost of
mowing x lawns.
b) jamal determines that the total-profit function
for the lawn mowing business is given by
p(x) = 16x - 250. find a function for the total
revenue from mowing x lawns. how much does
jamal charge per lawn?
c) how many lawns must jamal mow before he begins
making a profit?

Based on what i know about mean, this doesn't add up.

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

Kayla has a $500 budget for the school party. she paid $150 for the decorations. food will cost $5.50 per student. what inequality represents the number of students, s, that can attend the party?