One of the sides of a rectangle has length 7. which of the following points, paired with (6,5), will make a side of this length?

Regular price 75$ discount 25%sale price?

Which of the following can be used to explain a statement in a geometric proof?

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! )