Identify the like terms.

9x, 10y, -9y, 10

a. 9x and -9y

b. 10 y and 10

c. 10y and -9y

d. 9 x and 10

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

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?

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .