Can you help me with this question? what is x=4

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.)

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer