Find the measures of two supplementary angles if the difference between the measures of the two angles is 35

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Which of the following represents the length of a diagonal of this trapezoid?

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! )