Write the inverse of 6x+8y=13 in f^-1(x) notation

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.)

Describe the relationship between the angles of similar triangles and the sides of similar triangles

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x