I believe the answer is 48 ... hope this helps
$17
17+11 = $28
28+11 = $39
39+11 = $50
17 + 11(n-1) $$
n-1 because removes the first class of $17
Use the law of cosines to find a:
So to use the given numbers you get:
Which would come out to equal about 35.94
so a=35.9
481*481= 231361
That in expanded form is
200000 + 30000 + 1000 + 300 + 60 + 1
Sorry if i am wrong I truely am