We have in total 432 students.
8.
We know that 23% of the students want to be a teacher, this means that:
[tex]432\cdot0.23=99[/tex]99 students want to be a teacher.
9.
We know that 13% of the students want to be doctor or nurses, this means that 26% of them want to be one of those, then:
[tex]432\cdot0.26=112[/tex]112 students want to be doctor or nurses.
10.
Since 9% of the students want to be lawyers, this means that 91% of them did not want to be lawyers, then:
[tex]432\cdot0.91=393[/tex]393 students does not want to be lawyers.
