Asemicircle has a diameter of 18 centimeters. what is its area? (use 3.14 for pi)a 1017.36 cm 2b 56.52 cm 2c 127.17cm 2d 113.04 cm 2

What is the 12th term of b(n)=-4-2(n-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.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line