Answer: 5 pizzas and 17 sodas were bought
Explanation:
I don't have answers for a or b but I have them for c.
Number of pizzas
9.50n+1.25(3n+2)=68.75
9.50+3.75n+2.50=68.75
combine like terms
13.25+2.5= 68.75
subtract from both sides
13.25=68.75-2.5
13.35=66.25
Divide
n=5
Number of sodas
3n+2=3(5)+2=15+2=17