Kalvin is watching the stock that he invested in. On Monday, the stock was worth $24 a share. On Wednesday, the stock had dropped to $18 a share. By Friday, the stock was worth $21 a share. What was the net change in the stock from Monday to Friday? (Guys I really need help :( )

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.