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20. what is the exact volume of a cylinder whose diameter is 10 meters and whose height is 12 meters? show your work.

21. what is the exact volume of a sphere whose diameter is 14 cm? show your work.

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section