Is this a true/false or do you need an actual mathematical answer?
i will edit my this to answer your question.
I'm just not exactly sure what you are asking :-/
Answer:
(1,2) (3,2) ( 5,2)
Step-by-step explanation:
Each input value can only go to one output value
The only one that has each input only going to one output is (1,2) (3,2) ( 5,2)
The first blank is 17
2nd blank is 85
3rd blank is 15
wat happened is
C=paid-costofpizzas
paid=100
costofpizzas=number of pizzas times cost per pizza
costofpizzas=5 times 17
so
C=100-5 times 17
C=100-85
C=15
change=$15