The diameter of a circle is 18 cm. Find its area in terms of \piπ. (pi)

Diameter of the circle.. = 18cm

Radius of the circle =18/2= 9cm

Area of the circle = pi r^2

= pi 9^2

= pi 81 cm^2

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

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step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.