H + p = 25
1.50 h + 0,50 p = 26.50
___________________
p = 25 - h
1.50 h + 0.50 ( 25 - h ) = 26.50
1,50 h + 12.50 - 0.50 h = 26.50
h = 26.50 - 12.50
h = 14
p = 25 - 14
p = 11
Gillian purchased 14 hardcover books and 11 paperback books.
<u>ANSWER</u>
The correct answer is A
<u>EXPLANATION</u>
To find the ink cost of each card coming from printer B, we need to find the total cost from printer B and the total number of cards printed by Printer B.
The total hours of all the three printers over the three weeks

The total hours of printer B only

Total number of cards produced over the three weeks

We can use ratio and proportion to determine the total cards produce by printer B only.


If less, more divides

Total cost of Printer B in 130 hours
$
The ink cost


$
to 2 decimal places
C. Since the data is going down by -8, and it starts at +45