Aplumber charges $70 per hour plus $40 for the call. what does he charge for 4 hours of work? what's the dependent, solution, independent, and function

In the triangle abc< angle c is a right angle. find the value of the trig function indicated. find tan a if a =12, b=5 a. 13/12 b. 12/13 c. 5/12 d.12/5

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

Yvaries inversely as x. y =12 when x=5. find y when x=4