492.3069 rounded to the nearest thousandth is 492.307 :-)
Answer: 
Step-by-step explanation:
use probability
the chances of you getting heads on a coin is 50% therefore, flipping two coins is just

Answer:
$5.60
Step-by-step explanation:
Multiply the price of your book, $69.95 by the tax .08
69.95 x 0.08 = 5.596, rounded up to 5.60
Answer:
The first choice
Step-by-step explanation:
Answer:
3 months
Step-by-step explanation:
Let x be the number of months CDs are added at Tom and Nita's respective rates of 1 and 5 CDs/month.
Tom's collection after x months is = 30 + 1x
Nita's collection after x months is = 18 + 5x
At some point they will have equal numbers of CD's, so set the equations equal to each other:
30 + 1x = 18 + 5x
4x = 12
x = 3 months
At 3 months both Tom and Nita will have the same number of CDs.
Tom: 30 + 1*3 = 33 CDs
Nita: 18 + 5*3 = 33 CDs