Answer:
D
Step-by-step explanation:
9x + 3 = 30
9x = 27
x = 3
Then 3x + 1 = 3 * 3 + 1 = 10
C is your answer.
It contains the proper points and form. A is not in point-slope form and B has the incorrect slope.
Let's say you have 20 friends over. 6 more are coming over. And they all want 3 slices of pizza.
So to figure out how many slices of pizza you would need, you'd use this equation: 3•(20+6)