$12.50
Set up a ratio.
If it was 12% off, you paid 88%.
So 88/100=11/x
Cross multiply and solve for x.
So x=1100/88=12.50
Step-by-step explanation:
Arc length formula is

where x is radinas.
A semi circle has a radian measure of

The radius is half of the diameter, 12 so the radius is

So the arc length is

Area of semi circle is

where r is the radius.



Answer:
It will have 16 times more coverage than cell tower A.
Answer:
197
Step-by-step explanation:
Divide 1640 by 25
1640/25=65
Then multiply 65 and 3
65x3=197
52.7 ÷ 4.25 = 12.4
Hope that helps ....