A bar graph titled Recommended Hours of Sleep has hours on the x-axis and age of the y-axis. Elementary-age children should get about 11 hours of sleep. The bar graph shows the recommended number of hours of sleep for each age group.

How many hours of sleep are recommended for elementary-age children?
exactly 9 hours
exactly 10 hours
about 10 hours
about 12 hours

Write a polynomial for a third-degree polynomial with leading coefficient -4

The function g(x) is defined as shown. x-1, -2 g(x) = 2x+3, -1 6-x, x23

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?