6. The graph of a linear function is shown on the coordinate grid. 101
(-4, 6)
x
20-9-8-7-
(1,-9)
What is the y-intercept of the graph of the linear function?

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.)

Can someone me with this problem i don't understand i need

Solve the triangle. a = 21°, c = 105°, c = 5