Janine has two important tests to study for. if she plans to divide her study time equally between both tests, how long should she spend studying for each test if she wants to study for at most 90 minutes?

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.)

Can someone me out here and the tell me the greatest common factor

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5