Estimate a 15% tip on a dinner bill of $79.24 by first rounding the bill amount to the nearest ten dollars.

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

The product of two negative rational numbers is always zero sometimes zero never zero

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.