Which equation has the same solutions as 2x^2+16x-10=0?

Find the multiplicative inverse of 8-12i

Acircle has a circumference of 28.36 units what is the diameter of the circle

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.