Please help! When parallel lines are cut by a transversal, which of these statements must be true about the measures of vertical angles?
They are equal to each other, because one vertical angle is supplementary to the other.
They are not equal to each other, because one vertical angle is not supplementary to the other.
They are not equal to each other, because one vertical angle is not a reflection of the other.
They are equal to each other, because one vertical angle is a reflection of the other.

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