Answer:
5mins- 300s
210mins- 12600s
5mins-3
210mins-?
300/3=12600/x
x=12600/300 x 3
=126
or 210/5=42
42x3=126
23
Step-by-step explanation:
2x + 3x +1 + 3x - 5 = 180
>8x -4 = 180
>8x = 184
>x = 23
2/6