Which value of n makes the equation true?
-1/2n = -8
A. -16
B.-4
C.4
D.16

Regular price is $77.00 and the discount is 5% find the sale price

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

What properties allow transformation to be used as a problem solving tool