Girls=3 units
3unit=30
divide both sides by 3
1unit=10
2+3=5
5 total units
1unit=10
times 5 both sides
5units=50
50 total students
The ratio would be 3:1
2 dozen= 24 so the ratio would be 24:8 but both numbers are divisible by 8
If I am not mistaken the inequality would be 45x is greater than or equal to y since the minimum would be 45 minutes a day.
5+8=13
-2x-2 = 4
13 to the fourth power = 13x13x13x13 =28561
28561 is your answer