The following set of coordinates represents which figure?

(1, 1), (5, 3), (7, 7), (3, 5)

parallelogram

rectangle

rhombus

square

The chart below shows the distribution of weeds in yard

Varies inversely with x. if y=8.5 when x=-1 find x when y=-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! )