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Wallace has a $50 bill. Pizza pies cost $12.25 each. If p represents the number of pizzas he buys, write an expression for the change he receives.

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Answer:

The answer is

for p<5

F(p)=50-p(12.25)

Step-by-step explanation:

First we stablish that 4 is the maximun number of pizzas he can buy as

50/12,25 = 4,08

then we know that he will receive change iqual to the original amount he has less the number of pizzas he buy multiplied for the cost of each pizza.

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