PLEASE HELP M Triangle R'S'T is a dilation of Triangle RST. What is the scale factor of the dilation? State what strategy and tool you will use to answer the equation, explain your choice, and then find the answer.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq