The number of dogs in a shelter is equal to 4 less than 2 times the number of cats. If there are 20 dogs in the shelter how many cats are there?

find the derivative: y = (4xe^x) / (x^2+1)

Estimate the answer to 122 divided by 53

An irrational number is a real number within a radical sign. True or False? Explain.

Expand the fraction 72/125. so that it has a denominator of 1000.

Determine whether each ordered pair is a solution of the given equation. 3. (6, 4); y = 2x - 8 4. (8, 72); y = x:9 5. (-3,-18); y = - 6x 6. (5,64); y = 12x+4

55% of the 400 students at a school went to the game. Select true or false A. 55 students went to the game. B. 180 students did not go to the game. C. More than half the students went to the game.

What is the y-intercept for y=3 (x-5) (x+4) ?

Is-54/9 an rational number?

Whats 31 divided by 45

The quotient of (x4 + 5x3 - 3x - 15) and a polynomial is (x3 - 3). What is the polynomial?