Answer:
2:3
$3
Step-by-step explanation:
at $2 each 9 bars would be $18
at 3/$5, 9 bars would be $15
because 9bars /3bars per set=3 sets & 3 sets of 3 at $5 is $15
Answer: 2 out of 5
Since they are parellel sides it will be efficiet as 13. Answer is 13.
Hope this helped ( thx if you give branliest as well)