If f(x) = [x] + 9 and g(x) = -6, which describes the value of (f + g)(x)?
(f+ g)(x)2 3 for all values of x
(f+g)(x) < 3 for all values of x
(f+g)(x) = 6 for all values of x
(f + g)(x) > 6 for all values of x

Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3