It takes 12 men 5 days to complete a job. (a) Work out how many days it would take 3 men to complete the same job.

I know that the answer is 20 but I need an explanation

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

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.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position