Crystal earns $5.25 per hour mowing lawns. write a rule to describe how the amount of money m earned is a function of the number of hours h spent mowing lawns. how much does crystal earn if she works 2 hours and 15 minutes?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?