In ms. morales class, the ratio of boys to girls is 3: 7. the class sizes at ms. morale’s school range from 22 to 34 students per class. what is the total number of students in ms. morale’s class?

For every 3 boys, there are 7 girls.
X needs to be higher then 21 and lower then 35, so
21<X>35
X=n×(3+7)
X=n×10
n can only be 3 so that X can be 30
X = 3 × 10 = 30 students
if n is 4 for example
X = 4 × 10 = 40 which is higher than 34