Lindsey has 50 coins in her change purse that are either dimes or quarters. if y represents the number of quarters she has, write an algebraic expression in terms of y that describes the number of dimes.

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

What are the sotions to the quadratic equation 9x^2=4

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?