For a 10 month period the last term is 10 and the series sum is 55. For a 15 month period the last term is 15 and the sum is 120. For a 20 month period the last term is 20.
If u want the sum then it is 210.
Hope this helps you!
When you add a positive and a negative like you did here it basically is the same as subtracting 5 from 3
Answer: B.) 2:12 and D.) 3:18
Step-by-step explanation: ratios for one lime juice is 1:6
2 lime juice 2*6=12
3 lime juice 3*6=18
8-4 is4 so the answer is b