PLS HELP I NEED ANSWER

30 pts, will mark brainliestwhat is the period of the sinusoidal function? (picture 1)what is the minimum of the sinusoidal function? (picture2)what is the maximum of the sinusoidal function? (picture 3)

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Question 10 multiple choice worth 1 points) (09.06) based on the graph below, what is the total number of solutions to the equation f) = ? 10.5 + 13,75 + 11 + 25 + 2.75 -6 -5 4 3 2- -2.75 g(x) 65 -8.25 - 13.75 - one otwo three four