There are 17 boys and 14 girls in a class. The children sit at tables of 4. How many tables are needed?

Noah has 280 baseball cards. He gave 1/4 of the cards to Eden. How many cards did he give to Eden?

Nasir had 150 marbles. He gave 2/5 of the marbles to Wendsky. How many marbles did he keep?

What are intersecting lines?

A plate holds six pieces of cake. How many full plates can be created from 74 pieces?

Gavin has a set of red, orange, and blue cards. The orange cards make up 1/2 of the set. The set has four red cards. There are 3 times as many blue cards as red cards. How many cards are in the set?