Find the area of an equilateral triangle (regular 3-gon) with the given measurement. 3-Inch radlus
A= sq. In.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

What is x3+3x2−16x−48 divided by x−1?

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! )