What is the mean to a math problem

Replace ∗ with a monomial so that the result is an identity: (5x + ∗) (5x - ∗) = 25x2-0.16y4

In a square, the sum of the length of three sides is 48 and in a rectangle the difference between a length and width is 7 in if a width of the rectangle is the same as a side of the square how long is length of the rectangle.

A bag contains 4 red balls, 2 green balls, 3 yellow balls, and 5 blue balls. Find each probability of randomly removing balls with replacement. removing a blue, a green, a green, and a yellow

The gas tank of a 2013 honds accord holds 17.2 gallons. How many pounds of carbon dioxide are produced by burning an entire tank of gas

What is 19/6 x 6/5 with simplifying

8^2 - 4 (-3) (-2) / 8-8^2 : 4

Is 70+12 an expression or an equation

Simplify 2 · 5^2. A. 49 B. 20 C. 100 D. 50

Jill, meg and Beth are sisters. Jill is 2 yrs younger than meg. Beth is half as old as meg. let m represent megs age. Write two other algebraic expressions based on this situation.

Solve the right triangle. 51.50