B. has 15 marbles and he got 123 more marbles add those two numbers and see what the number rounds to.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

To decrease an amount by 16% what single multiplier would you use