a contractor is mixing concrete and mixed 3 parts concrete and 9 parts water. How much water is needed for 12 parts concrete?

Find the sum of 8 (5m) + 2 (3m); m=-2

Evaluate r (x) = - 0.21x^3 + x^2 - 8.1x - 3 for x = - 1 and x = 2.

Whats 1+1-2 times 3 + 4 - 2

Seven students chose integers: - 16, 12, - 13, - 6, 5, 6 and 1 Order the numbers from least to greatest. When all numbers are ordered from least to greatest, which one is in the middle? Which one is the least, Which one is the greatest?

To make fruit punch, Mrs. Casey adds 1,200 milliliters of water to 850 milliliters of syrup. How many liters of fruit punch does she make

Round off 24.67 to one significant

Solve by substitution or elimination 2x + y = 5 2x - y = 3

What number times 6 equals 15

How to solve 1/2b+4=1/8b+88

8x=25-9y - 13x=-35+9y