Write an expression for the perimeter of the triangle shown below: A triangle is shown with side lengths labeled 0.5x plus 9, 3x, and negative 3.4x minus 25.

6.9x − 16
6.9x + 16
0.1x − 16
0.1x + 16

Which math sentence can be used to determine if the triangle is a right triangle?

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.)

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship