3. After going to the mall, you and your friend go eat lunch at a restaurant. The final bill, including a 20% tip, is $31.80. Write and Solve an equation to find the amount of original bill for food you ate.

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?

How do i find the missing angle measure in a polygon

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42