Cleo wants to join a gym. There is an initiation fee of $24.99, plus a membership cost x. If Cleo pays $174.99, how much will the membership cost be ? Solve the equation by isolating the variable: 24.99 + x = 174.99

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)