Answer:
s = 210
Explanation:
s = n/2(2a+(n-1)d)
s = 10/2(2(3)+(10-1)4)
s = 5(6+(9)4)
s = 5(6+36)
s = 5(42)
s= 210
Therefore, s = 210
The answer is obviously 210.
1.6m questions
2.0m answers