There are 400 seats in the Jefferson Middle School auditorium. The students are using 3/5 of the seats. There are 65 seats being used by teachers. How many seats are NOT being used in the auditorium?

When you answer this can you explain

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.