The answer is B.
Hope it helps!
Answer:A)0.27
B)0.78
Step-by-step explanation:
This is the probability of picking 2balls of same color.
P(RR)+Pr(WW)+Pr(BB)
3/10×2/9+4/10× 3/10+3/10 ×2/9=6/90+12/90+6/90=
24/90=4/15=0.27
B)if the first ball is not returned, then there are 9 balls left.
Then probability of same color will be
PrB+PrW+PrR
2/9+3/9+2/9=
7/9=0.78
It’s 2.98 explanation:you divide $65.56 and 22.
Answer: 26 gallons.
390÷15
15 can go into 39 only 2 times.
39-30 is 9
15 can go into 90 only 6 times.
90-90 is 0.