8a+4s=840
a=s+30
8(s+30)+4s=840
12s+240=840
12s=600
s=50
A=s+30
a=50+30
a=80
The drama play sold 80 adult tickets
40 is <span> a multiple of 4 that is greater than 30 but less than 100.</span>
Answer:
It is exponential.
Step-by-step explanation:
Only linear equations would make a graph look this this.