Well im pretty sure you would devide the two
so devide 3 7/10 by 2 1/2 you would get 1.4
so scrap can go up to 1.4 in 2 1/2 hours
hope im right have a nice day :)
Pretty sure it's B I don't remember the proper rules of commas and the word "and" but it's either A or B
294 = 7x
42 = X
The height is x and the width is 2x
so
42 by 2(42)
42 by 84
hope this helps