Answer:
The percent increase is 120%.
Answer:
Step-by-step explanation:
RS ≡ MN
3x + 17 = 7x - 15
- 3x - 3x
17 = 4x - 15
+ 15 + 15
32 = 4x
4 4
8 = w
Average temperature = (12 - 8 + 3 + 6 - 15) / 5 = -2/5 = -0.4
Answer: 
Step-by-step explanation:
We have the following expression:

If we rewrite it in descending order, from the highest exponent to the lowest exponent, we will have:

This is a Fitht degree polinomial, since its highest power is 5.