Solve this system of equations. For x, y, and z x - 2y + 3z = -14
2x - 4y + 2z = -24
3x - 2y - 5z =0

Which expression is equivalent to 2x^2+7x+4?

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?