How many liters of a 10% alcohol solution must be mixed with 90 liters of a 40% solution
to get a 20% solution?

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Can someone me out here number 4 plz

Complete the input-output table for the linear function y = 3x. complete the input-output table for the linear function y = 3x. a = b = c =