Mr. R.’s World of Math

“Like what took you guys so long?” asked Hannah as she took a long sip of her drink.

“Oh nothing,” answered Justin, “Norman just thought he’d play a little joke on us by pretending you guys were his prisoners. Right Norman?”
Norman was still on his knees whimpering, “Not the Evil Wizard of Math. Anything but the evil wizard of math, I’d rather be tied up, thrown in a pool full of hungry sharks than meet him again. I’m still trying to solve the horrible problems he gave me last time!” cried Mr. Norman as he took out another sheet of paper with a math problem on it.
Why don’t you solve it for Norman to make him feel better:

If you have 6 quarters, 5 dimes, 7 pennies, and 4 nickels, how much money do you have?