Answer:
36
Step-by-step explanation:
Answer is x-1/3x^2
Merry Christmas
Answer:
19
Step-by-step explanation
Let the sum of n terms of A.P. = Sn
Answer:
10.
Divide b into thirds, and then add together 2 of those thirds.
15/3 = 5
5x2 is 10.
Sorry if that doesn't make sense but it's how I do it in my head lol.