What is the value of y in y=2x -5 when x=3.9

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?

Can someone check my answer? you

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200