If someone is traveling 3mi per 15 mins how far do they go in 1min?

If f(x)= 3x+6 which of the following is the inverse of f(x)

Which expression gives you the distance between the points (5,1)and(9,-6)

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.