A volcano erupted

before it erupted it was 2950m high

after it erupted it was 2550m high

by what percentage of it's original height did it decrease after the eruption?

Maggie invests x dollars in the stock market. During the first month, she loses $500. During the second month, she doubles her money. How much money does Maggie have in the stock market at the end of two months?

Raul has 4/5 pound of modeling clay. He needs to divide the clay into bags that hold 1/10 pound each. How many bags will he fill?

A 11 ft board is to be cut into three pieces, two equal-length ones and the third 3 in. shorter than each of the other two. if the cutting does not result in any length being lost, how long are the pieces?

4:n=6:9 how do you get it ... ?

Solve for n. 0.7 (6 - 0.3n) = - 2.1

Whats the nonpermissible replacement for a in the expression 4/3a

Which are solutions of the equation x2 - 16 = 0? Check all that apply x = - 8 x=-4 x = - 2 x = 2 x=4 x=8

Use the discriminant to describe the roots of each equation. Then select the best description. 3x2 - 2 + 7x = 0

What is the Equivalent expression for (y + y + y)

The longer leg of a right triangle is 1 m longer than the shorter leg. The hypotenuse is 9 m longer than the shorter leg. Find the side lengths of the triangle.