You have decided to join a walk-a-thon to raise money for the local animal shelter. There are two teams that you can join. Team A raises $5.50 per mile they walk. Team B raises $6.00 for entering the race, and then $4.00 for every mile they walk. Start by solving for the amount of money Team B raises after walking 3 miles.
d=6+4m
Try finding 3 groups, for 3 miles, of $4 first, then adding $6.