Atypical container of orange juice concentrate holds 12 fluids ounces (fl oz). the standard recipe is "mix one can of concentrate with three cans of cold water".
olivia has one gallon container to fill with orange juice. she uses the standard recipe. how much concentrate does she need? (one gallon 128 fl oz)

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6