A recipe calls for one-half of a tablespoon of baking powder for 3 cups of flour. How
many tablespoons of baking powder is needed if 1 cup of flour is used?

A: 1/6
B: 1/4
C: 1/2
D: 1 1/2

Find the length of cu, the triangles are similar.

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)] =?

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