What are the slope and y-intercept of this function? Help plz!

A. The slope is 4.
The y intercept is (0,3).

B. The slope is 4.
The y intercept is (3,0)

C. The slope is -1/4
The y intercept is (0,3)

D. The slope is 1/4
The y intercept is (0,3)

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?