Grass can grow up to six inches in 7 days depending on the temperature, humidity, and time of year. At this rate, how tall will
2 answers:
You might be interested in
The equation for the area of a circle is: 
. Insert 9 as your radius (r) into the equation and solve:
\pi 9^2 = 254.469
\pi 9^2 = 254.469