P=(15x-2+4x+7)2=(19x+5)2=38x+10
It would be 7x hope this helps
Answer: 18
Step-by-step explanation:
2 degrees per hour
9 hours
1hour = 2 degrees
2hours= 4 degrees
3hr= 6 degrees
4hr= 8 degrees
5hr=10 degrees
6hr= 12 degrees
7hr= 14 degrees
8hr= 16 degrees
9hr= 18 degrees
So you are basically doing 2x9 to get your answer
I got 7.64 because you round the 3 to 4 since the 7, in the 3rd decimal place is higher than 5
I could be wrong but 20.5 and 7.5
