Which is the value of n for which 411/3 + 388 = n - 79

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.)

Use the graph of the sine function y=2sinθ shown below

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.