Ibought 4 1/2 lb of bananas for 3.98. what is the price per pound of bananas? a. $.88 b. $1.13 c. $1.88

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)] =?

Which expression is equivalent to 3^3 + 2^2?

Having a hard time understanding this question (see attachment).