Step by step ! complete the square to write each function in the form f(x)=a(x-h)^2+k. f(x)=3x^2+6x-2

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

With both problems. a.s.a.p directions on photo ^

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.