What the value of r that makes the value true? r+(-0.14)=0.47

Which of the following is correct interpretation of the expression -4+13

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

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd