Answer:
0.1 seconds
Step-by-step explanation:

The ball hits the ground when h=0
12 outcomes
1-heads or tails
2-heads or tails and so on
6*2=12
Answer: $28
to find 10% you need to divide by 10
10% = 3.5
20% = 7
35-7 = 28
Answer:
$9.12
Step-by-step explanation:
Decimal places are:
0.0 --> Tenths
0.00 --> Hundredths
0.000 --> Thousandths
etc.
Therefore we need to round the decimal to 2 decimal places...
9.123 --> 9.12 (The number rounds down if the number after it is between 1 and 4 and it rounds up if the number after it is between 5 and 9. In this scenario the number after it is "3" therefore it rounds down)