How does 4d+4f+4g change to d+f+g can be converted into s+f+g when looking for the midpoint of the midsegment of the trapezoid?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585