One of the angles formed by two intersecting lines is 30°. What is the measure of the other three angles? it is not 150 degrees for each one

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

16x^2-16x=5 solve the equation by completing the square

Can anyone me get through my algebra 2 class? the only class i need to graduate..