The sum of three consecutive even numbers is 78. what is the first number ? a (24) b (26) c (28) d (30)

Can someone with this one pre-calc question? the finishing time for a runner completing the 200-meter dash is affected by the tail-wind speed, s. the change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2 - 0.308s - 0.0003 predict the change in a runner's finishing time with a wind speed of 3 meters/second. note: a negative answer means the runner finishes with a lower time. round to the nearest hundredth.

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?