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?

the number of students in the tour sixth grade classes at northside school are 26 19 34 and 21 use properties to find the total number of srudents in the four classes

One lap around a dirt track is 1/3 mile. it takes Byrce 1/9 hour to ride one lap. how many miles can Bryce ride in one hour?

Without solving the equation, determine the nature of the roots of 2x2 + 3x + 9 = 0. Two, real unequal roots Two, real equal roots No real roots

Evaluate 32 + (4c-6c) + (2+6c) for c=5.

5 to the second power minus parentheses 2 times 8 plus 9 equals what need by today work out in 6 grade form

Bag a contains 7x counters bag b contains 2x counters Five counters are taken from bag a and put in bag b

Angela and Doreen each want to buy the same comb. Angela still needs 58 cents to buy a comb and Doreen still needs 6 cents. If they want to combine their money, they still do not have enough. What is the most the comb could cost?

The rate for one unit of a given quality is called a (n)

Her coins have a total value of $9.50. She has a total of 50 coins. Write systems of equations can be used to find the number of dimes, 푑푑, and the number of quarters, 푞푞, Alexis has. Solve the system and explain what the solution mean.

33/50 in decimal form