Answer:
x - 2y
Step-by-step explanation:
calculator...
<em>(</em><em>t</em><em>he answer is on the picture. is this correct?</em><em>)</em> ^^'
Difference in doughnuts = 50 - 40 = 10
Difference in money = 15 + 5 = 20
20 ÷ 10 = $2
Each doughnut costs $2
<em>Check:</em>
40 x 2 + 5 = $85
50 x 2 -15 = $85
Ravi has $85 at first.
Each doughnut costs $2
11.4 because do 57 divided by 5 equals 11.4 to run each mile