Answer:
3/50
Step-by-step explanation:
There are 5 + 4 + 2 + 6 + 3 = 20 marbles in the bag
P(draw a black) = 6/20 = 3/10
If the black marble is replaced, then there are 20 marbles in the bag again.
P(draw a blue) = 4/20 = 1/5
P(draw a black and blue with replacement) = (3/10)(1/5) = 3/50
I believe the answers are A. The account earns about 1.03% interest each year. and D. Tatiana's starting balance was $500.
I hope this helps
The way it is written, none of them.

The "a"s cancel out.
Answer:(2/3) + (9/10) = 47/30
= 1 17/30
Step-by-step explanation:
Answer: 12-2r
Step-by-step explanation:
3r+12-5r
= -2r+12 or 12-2r