Tre is in college and it's time to pay textbook fees! If Tre doing work study for $4 per hour, and works 3 hours per week, how long will it take Tre to pay off $130 in fees?

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32a³b² 8ab² simplify the following expression.

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?