Posted by chris on .
a man paid $8.50 for a small pump and 8 feet of tubing.he paid 12 times as much for the pump as for each foot of tubing.how much did the pump cost? the tubing?

math 
Reiny,
let cost of tube be $x per foot
then cost of pump is $12x
12x + 8x = 8.5
solve for x