What type of solution is x+3y=5 and -2x-6y=1 please show work and don't put it in a link

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Graph the equationy= x+3[tex]y = x + 3[/tex]