1.8 repeating as a mixed number in simplest form

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

What is x and y intercepts for y=x+7

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