15) A recycling factory makes its own new paper cups. It can make one new cup from nine used ones. If it has 515 used cups, how many new cups can it possibly make in total? 57

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

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?