A recipe for 30 cookies calls for 6 tablespoons of butter. How many tablespoons of butter would you need for 45 cookies?

9 tablespoons

Step-by-step explanation:

You are going to find the unit rate...

6 tablespoons of butter/30 cookies=0.2 tablespoons per cookie so

0.2*45=9 tablespoons of butter for 45 cookies

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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