The domain of any polynomial is
.. all real numbers.
Multiply the number of tosses by the percent of heads:
20 tosses x 0.75 = 15
The answer is 15.
(gof)(x) = g(f(x))
so
g(f(x)) = 3(6x - 4)^2 -2(6x - 4) - 10
g(f(x)) = 3(36x^2 - 48x + 16) - 12x + 8 - 10
g(f(x)) = 72x^2 - 144x + 48 - 12x - 2
g(f(x)) = 72x^2 - 156x + 46
answer
(gof)(x) = 72x^2 - 156x + 46
9 feet = 108 inches
$9.72 divided by 108= 0.09