Determine the sum of the following series. ∑n=1[infinity](4^n+8^n/13n)

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24