Find the perimeter of a triangle whose sides are 4x - 1,5x + 7 and 2x + 6.

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.)

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Which two undefined geometric terms always describe figures with no beginning or end?