If there are x $13 each books and y $17 each books, then we can build the following equations:
x + y = 8 (or y = 8 - x)
13x + 17y = 128 (or y = 128/17 - 13x/17)
:)
Answer:
Step-by-step explanation:
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Answer: $31.50
Step-by-step explanation:I think; $22.50 x .40=9
$22.50+9=$31.50
A reasonable estimate would be an estimate of 2.5 feet.
Answer:
A=a2=3.42≈11.56
Step-by-step explanation:
i believe