20 points! Please help me out here!

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy