Explain how to simplify this expression: 4a + 19 - 3a - 7

Suppose that a population parameter is 0.1, and many samples are taken from the population. If the size of each sample is 90, which of the following will most likely be the standard deviation of the sample proportions?

How can you find the area of a three-dimensional figure?

The function y=5/3x is shifted up 4 units. What is the equation of the new function?

How to solve 3x-4y=3 and 5x+2y=5 by addition

Natalie has 24 pairs of white tennis shoe out of 90 pairs of shoes. Use estimation to find the percent of her shoe that are white.

How to find the sum of the squares of the roots of an equation?

Manuela solved the equation below 2 (x+2) = x-4

C=-3. a=2 b=4 (2) 2 (3c+7)

1) x+3 - 5x + 7 + 4y

Amanda's computer weighs 56 ounces. how many pounds does it weigh?