Answer:
y=-2.5-5/4x and no it doesn't pass through (4,12)
Step-by-step explanation:
5x-4y=10
-5x +5x
-4y=10+5x
/-4 /-4
y=-2.5-5/4x
$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies
Answer:
you need to show the graph
Step-by-step explanation:
Answer:
32 + 9 = 9 + 32
Step-by-step explanation: