Afloor lamp originally cost $44.50. over a period of two months, it underwent the following changes in price. 62% markup 15% markdown 18% markup 20% markup 45% markdown what is the final price of the floor lamp? round all dollar values to the nearest cent. a. $62.30 b. $47.72 c. $35.60 d. $24.48

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.