Q + d = 16....q = 16 - d
0.25q + 0.10d = 3.10
0.25(16 - d) + 0.10d = 3.10
4 - 0.25d + 0.10d = 3.10
-0.25d + 0.10d = 3.10 - 4
-0.15d = -0.90
d = -0.90/-0.15
d = 6...dimes
q + d = 16
q + 6 = 16
q = 16 - 6
q = 10...quarters
so there are (10 - 6) = 4 more quarters then dimes
Thx from the website http://goodcalculators.com/ratio-calculator/
I'd personally go with A and C, The rest don't make too much sense. Don't count on my answer just yet though.
F(g(x)) = x + 1 . Just replace square root of x-2 to x in f(x)