How to find the radius of a circle when only the area is known?

Divide the area by pi. Then, square root the answer.

Step-by-step explanation:

Area of a cirlce= pi r^2

You have to divide by pi (3.14) APROXIMATELY and then divide what you get by the square root.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.