12000 x 0.40 = 4800
12000 - 4800 = 7200
7200 acres are being logged
hope this helps
Answer:

Step-by-step explanation:
step 1
<u>Find the volume of the tank</u>
we know that
The volume of a cylinder (water tank) is equal to

in this problem we have
-----> the radius is half the diameter
substitute

step 2
Find the cost

3,4,7 just plug the x into the equation
Answer:Week 1: $35.40
Week 2: $40.90
Week 3: $46.40
Week 4: $51.90
Step-by-step explanation:
29.90 + 5.50(x) = y
replace x with 1, 2, 3, or 4 for each week.