Find the area.
7 cm
3 cm
3 cm

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Match the one-to-one functions with the graphs of their inverse functions.

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25