Mike bought 5 new baseball trading cards to add to his collection . the next day hos dog ate half of his collection. there are now only 40 left. how many cards did mike start with?

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.