Answer:
- 1
Step-by-step explanation:

= 
= - 1
Answer:
12.57
Step-by-step explanation:
the formula for the area of a circle is 
the diameter is 2 times the radius, so dividing it by 2 gives you a radius of 2
substitute the 2 for the r in the formula and solve

4
≈12.57
Answer:

Step-by-step explanation:
First Rectangle:

Second Rectangle:


Taking the same test right now....I think the answer is 4.5. Hope that helps!
It is equal because every 2000 pounds is 1 ton and 18000lb divided by 2000 equals 9.