Mark knows that he will need to buy a new car in 5 years. the car will cost $15,000 by then. how much should he invest now at 8%, compounded quarterly, so that he will have enough to buy a new car?

X - initial investment
8% - annual rate

x·=15,000,

so x = 10094.54   

ANSWER: $10,094.57

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm