Find the third derivative of the function:

g(t)=square root of 7t+5

g = (7t+5)^1/2

g' = 1/2 (7t+5)^-1/2 * 7 = 7/2 (7t+5)^-1/2
g'' = (7/2)(-1/2)(7t+5)^-3/2 (7) = -49/4 (7t+5)^-3/2
g''' = (-49/4)(-3/2)(7t+5)^-5/2 (7) = 1029/8 (7t+5)^-5/2