R=radius
d=diameter
That is, area of a circle is proportional to the square of the radius or diameter.
For given problem:
The 14 ft diameter table will have an area (14/9)^2≈2.4 times greater than the area of the 9 ft table
Answer:

Step-by-step explanation:

Distribute:

Combine like terms:

-2r + 4 is your answer.
Answer:
30
Step-by-step explanation:
60% of 30 students is 18 girls