10 math questions I want answered (pair them up) Each problem in the first column has the same answer as a problem in the second column. Solve the problems and determine the matches.
Show your work

1. 7 3/5+2 1/2=
2. 10 3/5-4=
3. 5 2/9+7 1/3=
4. 11 5/6-3 3/4=
5. 4 7/12+4 3/14=
6. 8-6 5/9=
7. 17 14/15+2 9/10=
8. 1 17/18-1/8=
9. 6 1/12+6 3/4=
10. 8 2/9-6 17/18=

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