answer:
$5
Explanation:
our total is $25 and we are looking for the value of each eraser
1. subtract the value of the magazine ($5) from the total value ($25)
25 - 5 = 20
$20 is our total value for all 4 of our erasers and we are solving for the value of each eraser
2. divide our total value for all 4 ($20) erasers by 4 to find the value of each eraser
20 ÷ 4 = 5
each eraser is equal to $5 a piece