<span>The sum is 10 times 11</span>
25.12 but i am not sure i learned this million years ago....
hope i helped
P = d - 5.50
The cost of buying materials will be subtracted from what he earns. Therefore, what’s left over is the profit
There are

ways of selecting two of the six blocks at random. The probability that one of them contains an error is

So

has probability mass function

These are the only two cases since there is only one error known to exist in the code; any two blocks of code chosen at random must either contain the error or not.
The expected value of finding an error is then
47,448/12=$3954
As, 28/36 rule states that maximum of 28% of your monthly expenditure should be spent on housing finances.
0.28*3954=$1107,12
Answer: $1107.