Langston has $45$ greeting cards. He gives $18$ of the cards to his friends. What percent of his greeting cards does he give to his friends?

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Which value of y will make the inequality y< -1 false?