A 15-inch candle burns down in 10 hours. at what rate does the candle burn in inches per hour

Icould really use some with this question.

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat