Please help this is just an assignment a few questions.

  A = (1/2)Cr

Step-by-step explanation:

You're supposed to observe that the circle area decomposes into what is approximately* a parallelogram with height equal to the circle radius and base equal to half the circumference. The area is then ...

  A = bh

  A = (1/2)Cr

If you fill in the formula for C, you find this matches the formula for the area of a circle:

  A = (1/2)(2πr)(r) = πr²

* In the limit, as the number of sectors approaches infinity, this is exactly a parallelogram.

56

step-by-step explanation:

if the probability is 1/12, 75 people will receive a $25 gift card

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