Which of the following would eliminate the variable on the left side of the given equation? 38 - 15w = 25w + 4

Bring the coefficients to the same side. It doesn't matter which coefficient you choose, but since you asked to remove it from the left, I will bring the -15w to the right. This will also allow you to avoid dealing with negatives.

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p