Ell wants to combine 0.5 gallon of a 10% acid solution with some 35% acid solution to make a 15% acid
solution
Which equation can you use to determine how many
gallons of the 35% acid solution Ell should add?

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land