Sam is ordering pizza. Tony's Pizza charges $7 for a large cheese pizza plus $0.75 for each additional topping. Maria's Pizza charges $8 for a large cheese pizza plus $0.50 for each additional topping. For what number of toppings will the cost of a large pizza be the same at either restaurant?
The answer would be 4 because if you take 7+(.75*4)=10 and 8+(.5*4)=10 so because 10=10 the 4 is correct. For finding these kinds of things sometimes the quicker way to do it is guess and check meaning guess random numbers then check it and revise. Enjoy!=)
