Answer:
The answer is A. $4.50 for 9 cans
Explanation:
Divide 2.50 by 5 and you get $0.50 a can
Multiply $0.50 by each of your answers
A. 0.50 times 9 = 4.50
B. 0.50 times 1 = 0.50
C. 0.50 times 7 = 3.50
D. 0.50 times = 1.50
As you can see A. is the only one that matches
I hope this helps