Ms. smith bought a camera that cost $450 in addition she had to pay 4% sales tax how much did ms. smith pay for the camera

Which representation has a constant of variation of -2.5

Can someone tell me if this is perpendicular? !

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.