Evaluate the expression if x=12, y=8, and z=3 4x-yz

Step-by-step explanation:

Let if x=12, y=8, and z=3.

Evaluate.

Start by substituting the appropriate numbers in for

your variables, using parenthses as you go.

You'll get 4(12) - (8)(3).

Now think about your order of operations.

Multiplication comes before subtraction.

So first multiply 4(12) to get 48.

So we have 48 - (8)(3).

Now multiply (8)(3) to get 24.

So we have 48 - 24 which is 24.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.