Select all of the expressions that are equal to 6

Find the balance at the end of 4 years if 1000 is deposited at the rate of

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second