An arithmetic series consists of consecutive integers that are multiples are of 4. what is the sum of the first nine terms of this sequence if the first term is 0

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9