Grace starts 7 miles from her home and walks miles every hour. Her distance from home, y, after walking x hours, can be modeled by the equation y=- 7/2 +7

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?