Can someone break this down for me

a. you would need to know how many toppings are going on the pizza. the price changes depending on the number of toppings, because each one adds 35 cents.

b. x equals the number of toppings. the number of toppings will change from pizza to pizza, so you put a variable in its place so you can use the same equation for every pizza.

c. 12 + 0.35x  this is because the base price of every pizza is $12, then you add the number of toppings (x) multiplied by the price per topping ($0.35).

d. 12 + 0.35x when x=3 is 12 + 0.35(3) = 12 + 1.05 = $13.05

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)