Answer:
4 months and you can check for yourself by plugin in 4 in both equations (e.g. 1(4)+16=4(4)+4
Step-by-step explanation:
To do this: Agora = 1x+16
Key Club = 4x+4
1x+16=4x+4
1x+12=4x
12=3x
4=x
* 5+2k+n
Combine all like terms:
7-2 = 5
5k-3k = 2k
n = n
12x
c. 25 minutes
3x + 10 = 85
3x = 85 - 10
3x = 75
x = 25