Create an expression without using parentheses that is equivalent to7(3x+x)

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Which function has the domain x> -11

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?