Five worker are hired to seed a field by hand. Each is givens plot which is 5x6 feet in size. What is the total area of the field

First you'd find the amount of feet each plot is

5*6=30

Then you'd multiply the size of each plot by the amount of workers

30*5

The field is 150 sq ft

(This is assuming they hired enough workers to cover the whole field. Textbooks are so vague)

150. 5x6 is 30 and 30x5 is 150.