Heather measured the top of a cylindrical can of corn found it had a diameter of 84 mm. Which expression can she use to find the circumference, in millimeters, of the top of the can? No links please

For what value of (y) is 3^3/3^y =1/9

Solve the equation by completing the square. x^2+2x=17

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.