Suppose y varies directly with x. If y=45 when x=9, find y when x=7.

Create and solve a story problem about the runner who is training for a race include at least one fraction in your story

Mikael, hema and 5 friends will run an event. they will wear either a red shirt or red baseball hat during the event. they want to spend exactley $40. shirts cost $8 each and caps cost $4 each.

Susan and bethany are training for a half marathon. susan trains at a rate of 3 miles every half hour, and bethany trains at a rate of 5 miles every 45 minutes. what is the unit rate, in miles per hour for each runner? who trains at a faster rate