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the first shape should be 27.5 and the second one 150.

Step-by-step explanation:

if you split each shape to a rectangle and triangle. you find the area for the rectangle (do width x length) and for the triangle (do width x length divided by 2) you then just add them together.

pi x^2

step-by-step explanation:

pi times x squared

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours