An investment firm invested in two companies last year. They invested $18,000 in Company A and made a profit of 12%. They invested $7000 in Company B and made a profit of 17%.
What was the investment firm’s total profit?
Also what was the percent profit for their total investment?
Help ASAP

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