To converting 7.5 pounds to ounces, what unit would you place in the denominator of retio

What number produces an irrational number when multiplied by -1.25

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?

Ineed ! i can’t figure out this graph