A 20 watt LED light bulb is 70% efficient. How many watts are wasted as heat energy in an hour? PLEASE HELP

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet