To play at bingo night, there is a $15 cover charge plus $1.50 per bingo card. write an equation for the cost (y) based on the number of bingo cards (x).

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?