Answer:
8
miles or 25.133 miles
Step-by-step explanation:
your radius is 4 miles.
The area of a circle is A= 
Therefore, the area of this circle is 
, or 16
Half of this area, because what you're looking for is a semi-circle, is:
8 (exact) or 25.133 (rounded) miles.
Answer:
2 units
Step-by-step explanation:
It's because the only whole number factor pair to 10 is 2x5 and luckily, it turned out that 5-3=2, so there are no decimals or fractions.
It is 2.56 because per pound equals the amount
