Answer:
there are 21 students in her class.
Step-by-step explanation:
Since the 12 girls corresponds to the 4 in the ratio, I multiplied the 3 by three to get the amount of boys. then add the boys to the girls to get 21 students.
No, she will still owe $9.30. $25.63 - $16.33= $9.30
Okay the height would be nice if it would have to come