Aline parallel to a triangle's side splits  ab  into lengths of x - 7 and x - 3. the other side,  ac, is split into lengths of x and x + 12. what is the length of ac?

a)21b)33c)54d)212

Write a story that matches with the expression 42x-5 pls hurry

Simplify the expression 10/11(22z) + (a+5) -1

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.