Need help with this equation in the picture

The system of equations graphed below has how many solutions? y = 2x + 2

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

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?