Michael’s age is 3 more than twice Ashley’s age. The sum of their ages is 18. If M represents Michael’s age and A represents Ashley’s age, which system of equations represents the statements above? {A+M=18A=3+2M {A+M=18M=2A+3 {A+M=18M=3(2+A) {A+M=18A=3(2+M)

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