Can someone show a step-by-step for number 10?

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?

What expression is equivalent to 1/2(2+3x-6)

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?