Asap an expression can often be used to model a real-life situation. for each of the following expressions, write a real-life situation using money as the context. then, evaluate the expression and interpret the result in terms of the situation. here's an example. the following situation is modeled by the expression -24.50 + 100.00: jonathan overdrew his checking account by $24.50. he then transferred $100.00 from his savings account to his checking account. his new checking account total is $75.50. make sure to use complete sentences in your answers. 1. $8.15 + $11.99 2. $20 - $18.04 3. 7($1.45) 4. $42.08/4

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