A. Find the mean of the following data: Marks: 10-20 20-30 30-40 40-50 50-60 frequency 5 17 25 20 10 b. Draw a histogram.

Math it's appreciated. (picture provided)

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?