Quadrilateral A^ prime B^ prime C^ prime D^ prime is the image of quadrilateral ABCD under a dilation. What is the scale factor of the dilation?

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.