Dan surveyed 10 students at his school and found that 5 of them planned to take orchestra as their next elective. If Dan surveys 18 more students, how many of them are probably planning on taking orchestra as an elective, based on past data?

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

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

Could someone me with this question i’ve been stuck on it for 20 minutes