How many girls like sports? well, what's 2/5 of 1200? well, is just their product, 2/5 * 1200.
how many boys like sports? well, what's 3/5 of 1200? 3/5 * 1200.
I think the probability would be 3/5<span />
The rule is 3^x.
Check: 3^1 = 3; 3^2 = 9; 3^3 = 27 and 3^4 = 81
The answer is C (289pi/6 mi2)
The correct answer should be 3.