A cable that weighs 8 lb/ft is used to left 750 lb of coal up a mine shaft 650 ft deep. Find the work done.

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.)

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Convert 3,200,000 to a scientific notation.