A triangle has sides with lengths if 10 feet, 14 feet , and 19 feet. is it 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.)

If the probability of an event happening is 65% then the probability this event does not occur?

If a=0.333333 and b=0.55555, what is the value of a+b