11 The Triple E Lumber store found that 1 out of every 10 chain saws they recently received were not properly assembled If they received 435 chain saws about how many chain saws can they expect to be faulty O435 5 chain saws O 43 5 chain saws O 44 chain saws O435 chain saws 12 How many ml of 10 percent acid should be added to pure acid to make 70 ml of 50 percent acid O 44 33 ml 38 89 ml