Astone is dropped into a lake, creating a circular ripple that travels outward at a speed of 40 cm/s. find the rate at which the area within the circle is increasing after each of the following.
after 1 s = after 3 s = after 7 s =

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

(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