Question

Please help with #19,20,21

Answer 1

For #20, the answer is 22 students

Explanation:

1/4 of 40 is ten, because 40/4 is ten.

1/5 of 40 is eight, because 40/5 is eight.

So 40 minus 10 + 8 = 22

Answer 2

#20- 22 students

Explanation:

1/4 of 40= 10

1/5 of 40= 8

8+10=18

40-18=22

22 students