One number is 4 less than 3 times another number. if their sum is 16, find the numbers. which of the following equations could be used to solve the problem if x represents a number? 3x - 4 = 16 4x - 4 = 16 4x - 12 = 16

Pls! does anybody know a shortcut for answering these types of questions in the future?

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.)

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°