Evaluate 2x - y + 4z, if x = 1, y = 2 and z = -1

The expression 20l+25g-10 calculates the number of dollars that the abc lawn company. how many dollars does the company make from raking 444 gardens and mowing 333 lawns

What is the difference between the predicted value and the actual value

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12