So what you would do is 42 + 1:33 = 2:15
Then you would add 2:53 to 2:15 which will be 5:08. So the final step will to subtract 5:08 from 8:01 which will be 2:53 P.M
If you would like to know the value of the larger number, you can calculate this using the following steps:
2 ... 3
18 ... x = ?
2 * x = 3 * 18 /2
x = 3 * 18 / 2
x = 27
The correct result would be 27.
So you have to answer all the questions for 4?
The margin of error for a sample proportion is given by

where:

is the z score associated with the confidence level, p is the sample prortion and n is the sample size.
We assume a confidence level of 95%, then
p = 52% = 0.52 and n = 2251
Therefore, margin of error =

The the interval that is likely to contain the true population proportion is between 49.9% and 54.1%.