A music app has a shuffle play function. This means that songs are played in a random order without repeat.
a) Sue puts 10 songs on shuffle play.
One of them is her favourite song.
Write down the probability, as a fraction,
that her favourite song plays first.
Write the fraction in its simplest form.
(1)
b) Ted puts songs A, B and C on shuffle play.
(1) How many possible orders of songs can there be?
(ii) List all the possible orders of songs A, B and C.
One has been done for you. ABC

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

What is the slope of (0,32) and (100,212)