Answer:
The amount of total cost is:
C=70.83
Step-by-step explanation:
Let:
C= total amount for 5 gifts
x= number of paperback books
As x is the number of pb books out of 5, so remainder hard covered books is:
5-x
Amount for pb books is:
6.95*x dollar
Amount foe hc books is:
24.99(5-x) dollar
Total amount is the sum of both amounts:
C=6.95*x + 24.99(5-x)
Substitute x=3:
C=6.95(3) + 24.99(5-3)
After calculation
C=70.83 dollars
