What is the value of x in the equation 3x-1/9y=18 when y= 27

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?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Which expression and diagram represent “renee biked four times as far this month as last month”?