Given:
Schaum's earnings in a month = [tex]x^4+16x[/tex]
His wife's earnings in a month = [tex]3x^4+11x[/tex]
Where x is the number of working days in a month.
To find:
The total earnings in a month.
Solution:
We know that,
Total earnings = Schaum earnings + His wife's earnings in a month
[tex]=x^4+16x+3x^4+11x[/tex]
[tex]=(x^4+3x^4)+(16x+11x)[/tex]
[tex]=4x^4+27x[/tex]
Therefore, the correct option is A.
