(01.06 MC) segment LR with point P between L and R

If LR = 12 and LP = 7, find PR. Explain.

PR = 19 because 12 + 7 = 19 according to the addition property of equality.
PR = 5 because 12 − 7 = 5 according to the subtraction property of equality.
PR = 19 because LR + LP = PR according to the Segment Addition Postulate, and 12 + 7 = 19 using substitution.
PR = 5 because LP + PR = LR according to the Segment Addition Postulate, and 7 + 5 = 12 using substitution.

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