Respuesta :
Answer:
4,536 cookies
Step-by-step explanation:
21 students
each student has 9 boxes
21 x 9= 189
189 boxes in total
24 cookies per box
189 x 124= 4536
In total all the students will sell 4,536 cookies
The answer is 4,536 because 21 x 9 = 189 and 189 x 24 = 4,536