Question 1076313
A boy has x quarters, twice as many dimes as quarters, and 8 more nickels than quarters in his piggy bank.
 How much in cents, is in his bank ? 
x = no. of quarters
2x = no. dimes
(x+8) = no. of nickels
:
f(x) = total cents
f(x) = 25x + 10(2x) + 5(x+8)
f(x) = 25x + 20x + 5x + 40
f(x) = 50x + 40