What is the slop of y=-1/2x+1

How many different ways can you make change for $.50 using only nickels, dimes, and quarters?

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points