She was interested in everything and everybody.
Let p represent the number of people that signed up for programming class.
Math class = 9p
Total students = 9p + p = 10p
We also know that 45 students are wanted in each class, therefore there are 45*2=90 total students.
Now:
10p = 90
p = 9
45 - 9 = 36 students that needed to be moved.
I can’t answer, could you please add photos or a document with more information so I can answer accurately??