Please look at image

Explanation:

Let's calculate the area of a full circle

A = pi*r^2

A = pi*2^2

A = pi*4

A = 4pi

However, we only want a quarter of a circle. So we'll divide that result by 4.

(4pi)/4 = pi = 3.14

You can enter pi as the answer, or 3.14, as your teacher is giving you two options.

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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step-by-step :