Find the length of the third side. If necessary, round to the nearest tenth.2 5

Qrst is a parallelogram. determine the measure of ∠q pls

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! )

Write the standard form of an equation with (see picture below)