PLSSS HELLP ASAP
Which of the following rational functions is graphed below?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1