For the arithmetic sequence beginning with the terms (1, 4, 7, 10, 13, 16...}, what is the sum of the
first 19 terms?

5. (04.07)which of the following exponential functions goes through the points (1, 12) and (2, 36)? (2 points)f(x) = 3(4)^xf(x) = 4(3)^-xf(x) = 3(4)^-xf(x) = 4(3)^x