Answer:
16
Step-by-step explanation:
5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80
n = -11
3n - 17 = -50
⇒ 3n = -33
⇒ n = -11
I just answered the other question you asked. Why did you ask the same question twice? Also, I said the 1st one
0.3
x is the number to be added to 0.7 to have a sum of 1.