Answer:
pencil= $0.83 books=$11.25
Explanation:
to find the price of the pencils you have to divide the total amount by the number of pencils
$2.50/3 = $0.83 this gives you the price of one pencil
and the same for the books but multiply by the new amount of books "2"
2($22.50/4)
2($5.62)
$11.25
if you add both prices
$11.25+$0.83= $12.08
Answer: $12.083
The cost of 3 pencils is $ 2.50
The cost of 4 books is $22.50
The cost of a person is $2.50/3 = $0.83333
The cost of a book is $22.50/4 = $5.625
The cost of 2books and a person is
2*$5.625+$0.8333
$12.083
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