What is -13/6 as a repeating decimal

Select all the statements that apply to this figure

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

The graph is supposed to show f(x) = 3 sin (x/4+1) - 1/2. which of the following are correctly represented in the graph? select two of the following that apply.