a pizza shop charges $9 for a large cheese pizza. Additional toppings cost $1.25 per topping. Heather paid 15.25 for her large pizza. how many toppings did she order

so I believe you would do 15.25-9 which equals 6.25 then divide 6.25 by 1.25 and thats 5 toppings. but I don't know for sure.