PLEASE HELP ASAP

Jessica brings her friends to a party. There are 40 people attending. Jessica brings 2 friends there. How many people are at the party without Jessica and her friends?
a. 37
b. 38
c. 40
d. 3

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? a) 6 b) 8 c) 14 d) 20

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds