How do you tell if a equation is linear or non linear

Find the perimeter of the square 4x+3in 3 (2x-5) in

the length of a rectangle is 11 feet more than its width. The area of the rectangle is 276 square feet. What are the dimensions of the rectangle?

Maggie uses a credit card with 17.4% apr compounded monthly to pay for car repairs totaling 843.12 she can pay 330 per month on the card what will the total cost be

Solve for the following equation for x: 6 (4x+5) = 3 (x+8) + 3. Round to the nearest hundredth.

Just a quick math question. When converting 18 quarts into gallons, I would have to divide by 4 to get the answer which is 4.5, but why am I dividing by 4? Where did 4 come from?

It takes 48 minutes for 7 people to paint 7 walls. How many minutes does it take 20 people to paint 20walls?

Strengths and weaknesses of horizontal and vertical methods for adding and subtracting polynomial

5x - 10y = 15 3x + 7y = 31

Janelle made a fruit cake using bananas and apples. Forty percent of fruits are bananas. If she used a total of 120 fruits, how many apples should she use

Select the rational expression that is equivalent to the given expression below. 4 / x - 3 A.) x + 2 / x - 3 : 4 / x + 2 B.) x + 2 / x - 3 · 4 / x + 2 C.) x + 2 / x - 3 - 4 / x + 2 D.) x + 2 / x - 3 + 4 / x + 2