Find the value of the sum ∑j=131(6j2−7j+4) ∑
j
=
1
31
(
6
j
2
−
7
j
+
4
)
. Use a summation formula, if possible.

What is the value of r of the geometric series?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)