Answer:
Cost = 42 pounds
Step-by-step explanation:
Cost = 5 x 4 + 22
the slope is -1/1 or just -1
so u start at the origin or say 0 then u go right 1 and down 1
since the line is going down its gonna be a negative 1
hope this helps
B: (c - 2a, 0) is the answer.
She only needs 5 more cups.