6cm
10 cm
a conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?
оа зот cm3

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! )