What is the surface area of this

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?

Identify the graph of y = ln x + 1.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7