How do u do 4 over T+2 = 3 over T-3 in solving proportions NO LINKS

Given the graph below state whether or not the relation is a function, and give the domain and range.

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?

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue