iris spent 2 and 1/2 studying last night she spent 1/5 of the time studying how much time did she spend studying science. How much time did she spend studying science? ( test please hurry I have 5 minutes remaining!)

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

Pick the description of a geometric object that best matches the real world object box for a deck of card

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.)