Autumn made 72 more cupcakes thsn Averle. If Autumn made 88 cupcakes how many did Averle make

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Which of the following is the sum of 3 1/6 + 6 3/8?

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.