I need help on the following questions. Please help if you can - I'm stuck.

Evaluate the limit (if it exists) as x goes to -6

lim x app -6 6 + 25x + 4x^2/(-36 + 6x + 2x^2)

The answer has to be in fraction form I'm told

Differentiate the following function with respect to x

g(x) = - 3/2 + 6/(5x^12/5) + 2x^9

Differentiate the following function with respect to x

f(x) = 9x^4 + (13x^10)/6