Answer:
-2
Step-by-step explanation:
K12
-9
-9 x -9 x -9 = -729
-9 x -9 = 81 x -9 = -729
30 are girls, and 20 are boys because every 3 out of five students are girls, and every 2 out of 5 students are boys.
Nb
y=6/5
5y+6=12
5y+6-6=12-6
5y=6
