What is not an efficient greenhouse gas : helium methane CO2 or water vapor

How do u simplify 4b - 7 - 15b + 3

The area of the region bounded by the curve y=e^ (2x), the x-axis, the y-axis, and the line x = 2 is equal to

A rectangle has a perimeter of 26 feet. Twice its length (l) is one foot more than three times its width (w). What is the length of the rectangle, in feet? A. 5 B. 13 C. 8 D. 16

Krishawn adds two rational expressions, and then simplifies the answer. His simplified answer is (x-6) - (8+2) / x-2 Which expression could represent Krishawn's original problem?

How do you simplify - 3 1/2 - - 12 1/4

2. Which equation can be used to represent "six added to twice the sum of a number and four is equal to one-half of the difference of three and the number"?

There are 8 blue marbles and 7 red marbles in a bag. Julie pulls 2 marbles at random from the bag first. What is the probability that she first pulls a blue marble then a red marble? Show work.

Which of the following is an equivalent form of the compound inequality - 44 > - 2x - 8 ≥ - 8? -2x - 8 > - 44 and - 2x - 8 - _> - 8 -2x > - 44 and - 8 _> - 8 -2x - 8 < - 44 and - 2x - 8 _<-8 -2x - 8 - 8 .

Identify the property shown below: 4+ (x + y) = (4+x) + y

The perimeter of a rectangle garden is 100 Ft the length of the garden is 5 feet longer than two times the width what is the area of the garden