Bob asked each of 40 friends how many minutes they took to get to work. The table shows some information about his results.
Frequency
3
8
Time taken (m minutes)
0 10 20 30 40 11
9
9
Work out an estimate for the mean time taken.

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet