What is the best answer for the equation -15=-6r+r

Gabriel paints flower pots to sell at a craft fair. she paints 2/5 of a flower pot teal, 1/4 of it yellow, and the rest of it white. what fraction of the pot is painted either teal or yellow?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !