Use complete sentences to describe why √-1 ≠ -√1

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.)

True or false? a circle could be circumscribed about the quadrilateral below.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250