Answer: 6 trombones
Step-by-step explanation:
We can set up a proportion.
Let x be the number of trombones there are.

We can cross multiply:
4*9 = 6x
6x = 36
Divide both sides by 6:
x = 6
Answer:
1: -4
2: A and B
3: There is a fixed price of %3.99 per ticket.
4: 8, and 4 per movie
In right angle triangle cot(x) = base÷perpendicular
~ 5/12
Answer:
-50x^2+30x-4
Step-by-step explanation: