Answer:
x = 15
Step-by-step explanation:
The equation for direct variation is
y = kx
y=21 when x=3
21 = k*3
Divide each side by 3
21/3 = 3k/3
7 =k
y = 7x
Let y=105
105 = 7*x
Divide by 7
105/7 = x
15 =x
12 kids are in the theater.
4+2=6
36÷6=6
6×2=12
So, 12 kids are in the theater.
Answer:A on edg.
0.2
2/10 or 1/5