Alarge pizza at little italy costs $7.00 plus $0.80 for each topping. the cost of a large cheese pizza at spinato's is $7.60 plus $0.70 for each topping. how many toppings need to be added to a large cheese pizza to make the costs of the pizza be the same?

At the start you will start with $7 and $7.60 there is a simple way and a more complex process. The simple way is using the formula of y=mx+b so y=.8x+7 and the other way is just too add .8 to 7 and .7 to 7.6 and keep doing that till you get the answer. The answer is 7, seven topping have to be added to make them the same price.