An item, which is regularly $4.60,is on sale for one-fourth off. what is the sale price?

Kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.90. how many of each type of coin do they have?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Need on this geometry question. explain how you did it.