The amount of money, in dollars, Sarah has in her savings account is modeled as a function of time in months. The function is represented by the graph below.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.