6th grade math help pls

Ihonestly have no clue if it's each or none.

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?

Were only 64 seats. the remaining 6 students had to travel in a separate van. the equation 2b + 6 = 70 represents the given scenario. what does b represent? the number of buses the number of vans the number of students who rode on each bus the total number of students going to the football game