Answer:
$1.4 B per year
Step-by-step explanation:
-10 + a = 6a - 7a
Rearrange the left hand side
a - 10 = 6a - 7a
Simplify 6a - 7a
a - 10 = -a
Add a on both sides
2a - 10 = 0
Add 10 on both sides
2a = 10
Divide by 2 on both sides
a = 5
it is number 1
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Answer:
55
Step-by-step explanation:
The cost of the youth-sized T-shirts plus the cost of the adult-sized T-shirts is less than or equal to Maria's budget.
45 ($4.50) + x ($6.25) ≤ $550
$202.50 + x ($6.25) ≤ $550
x ($6.25) ≤ $347.50
x ≤ 55.6
The most adult-sized T-shirts she can buy is 55.