Answer:
19 or m = 19
Step-by-step explanation:
7(13) - 4(13) = m + 20
91 - 52 = m + 20
39 = m + 20
subtract 20 from both sides to get m = 19
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14
they = to the same thing
Total= X
Top= $23.5
Left= x-23.5
Saves= 2/5 * (x-23.5) = $13.80
0.4 * (x-23.5) = 13.80
X - 23.5 = 13.80/0.4
X - 23.5 =34.5
X= 34.5 + 23.5
=$58.00