After shopping, it took manuel 87 seconds to push a shopping cart directly to his car. In one third of the time, Marco had move 58 meters at a constant velocity. What was the cart's velocity?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?