Which of the following inequalities are correct? Choose all answers that apply:
A. --2.4 < 1.8
B. 2.4 < 1.8
C. --1.8 <--2.4
(Please Help)!

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

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

The radius of the sphere is 10 units .what is the approximate volume of the sphere use π=3.14