Billy has a gift card with a $150 balance. He buys several video games that cost $55 each. After the purchase, his gift card balance is $40. Enter equation to help find out how many video games Billy bought.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.