Find the unit rate: divide the area by the time. Optionally: convert the given fractions into decimal fractions to speed things up:
0.4 acre
--------------- = 0.5333.... acre/hour, or 8/15 acre/hour.
0.75 hour
Four more than twice a number
15.50 +n =325.00
36 units
Because from 18 to -18 it is 36
I would say range but it might be mode
First take the inside diameter and divide by 2 to get the radius (4cm)
Then use
r^2 with 'r' being your radius to get the area of the base
The area is 12.7 cm
Now multiply the height by the area of the base to get the volume/ capacity!
40cm x 12.7cm (rounded to the nearest tenth) = 502.7 cubic centimeters