One way to choose stocks is by customers demand
1/4;2/5;83/100;3/2;7/10;4/5
The answer is C, since the number in the parenthesis represent what is being multiplied every year
45/45/90 triangle has side ratios s/s/sroot2
leg = root 5
Other leg is also root 5
X is Hypotenuse which would be root 5 * root 2
root 5*2 = root 10