Doreen Schmidt is a chemist. She needs to prepare 32ounces of a 15% hy drochloric acid solution. Find the amount of 16% solution and the amount of 8% solution she should mix to get this solution.

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.