<span> It would depend on the number of rows?
This is an arithmetic sequence and the sum of n terms is -->
n/2(2a+(n-1)d), where a is the first term and d is the common
difference. In this case a = 10, d =6
n/2(20+6(n-1)) = 3n^2 + 7n = ANSWER
n = number of rows
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I'm not sure what the question is. It looks like some of it may have been cut off or there is information missing?
Answer:
I think it 7/18
Step-by-step explanation:
sorry if it is wrong
Answer:
Step-by-step explanation:
a) P (June) = 7/15
b) P (Angad) = 8/15