Pls help how do I find the variables? (offering 30 pts, don't answer unless you know the answer.)

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program

What is the solution to the equation in the & show work i’m very