Simplify -2/3 + -4/5 + 7/15 + -11/20

What is the volume of a rectangular prism that is 120 centimeters by 2 meters by 1.5 meters in cubic meters?

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

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost