Answer :
Well we start by turning that "n" into 10 in 100 + 4n, and that 4n means we gotta multiply, so we multiply 4 X 10 to get 40. now we just add 100 + 40 to get our answer, which is $140
Well we start by turning that "n" into 10 in 100 + 4n, and that 4n means we gotta multiply, so we multiply 4 X 10 to get 40. now we just add 100 + 40 to get our answer, which is $140