Steven is solving the equation 3(8−2x)+40=34. he begins with the following two steps.
step 1: 3(8)+3(−2x)+40=34
step 2: 24−6x+40=34
which of the following is the best next step for steven to take in solving the equation?
add 24 to both sides.
add 24 and 34.
add 24 and 40.
multiply both sides by –6.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?