last weekend i was given my pocket money.
it is meant to last me all week.
on monday, i spent a quarter of my money on cloth
on tuesday, i spent one half of my remaining money on
on wednesday i spent half of my remaining money on
finally, on thursday, i spent my last $1.50 on a comic.
how much pocket money did i receive?

yes, whats the problem?

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