Find the value of x.

please help! :)

There are 12 boy and13 girls in a class. if the teacher randomly chooses a student’s name out of a hat what is the probability it will be a girl

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)