Question 11 (Mandatory) (1 point) The Quicks are driving to their vacation home. After driving for 3.25 hours, they are
250 krn from the vacation home. Then, after 4,75 hours of dúving, they are 150 km
from the vacation home. Approximately, how fast are the Quicks driving?
a) 83 km/hr
b) 67 km/hr
c) 60 km/hr
d) 75 km/hr
Question 12 Mandator 61 point

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