The answer should be A. 4 Meters
400 - 2 x Age = 244
-2*Age = -156
Age = 78 years
I think it is d because it would be 15 x b = 60. Hope I got this right
Yes she does have enough. Here is why:
If you add 1/4 and 1/4, you get 2/8 which is also 1/2.
3/4 is bigger than one half. If you subtract 1/2 from 3/4, you get 1/4.
So she would have 1/4 left.
Absolutely enough to get to her friends house and back. :)
Normal circle area is πr², which is (d/2)²π.
That makes your case 14²π divided by 2 is 196π/2=98π cm²
