3 times 0.78 = 2.34 dollars
5.00 - 2.34 = 2.66
So your change is $2.66
I suppose that the expression you wanted to write is

. If so, then we have:
Answer:
y= 11 + 1.50x. (y is the price, x is number of toppings)
Step-by-step explanation:
Y=1x-7 is the equation and -7 is the value of B
Answer:
bxc+ax32=0
Step-by-step explanation: