Distributive property is used when you have a number outside a set of numbers in parenthesis.
Using the distributive property, you multiply the number outside the parenthesis by each number inside the parenthesis.
The first answer is correct because they are multiplying 9 by 20 and adding it to 9 multiplied by 6.
Area of a circle is pi*r^2.
Here the diameter is 22 inches, so the radius is 11 inches.
The area of the bike wheel is thus A = pi * (11 inches)^2 = 121*pi sq in
Answer:
D
Step-by-step explanation: