One day, you are rollerblading on a trail while it is windy. You travel along the trail, turn around and come back to your starting point. On you way out on the trail, you are rollerblading against the wind. On the return trip, you are rollerblading with the wind. You can only travel 3 miles an hour against the wind, which is blowing at a constant speed. You travel 8 miles per hour with the wind. Find your average speed with no wind and the speed of the wind.

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.