Will mark brainliest if
which of the following statements can be used to prove quadrilateral qrst is a parallelogram?

select two that apply.

qr≅st and qt≅rs

qt∥rs and qr≅st

qr∥st and qt≅rs

qr≅st and qr∥st

qr≅st and st¯≅st

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! )