Answer:
its D 1430
Step-by-step explanation:
A theater holds 2,680 seats. The lower level has 100 less than 2 times as many seats as the upper level. The middle level has 80 more than 3 times as many seats as the upper level. How many seats are in the middle level? A B C D
The answer is 8
t=45
value=3
You can see by the image how did I get the answer
=
1
2
x2+
20
3
x−3