Answer:

Step-by-step explanation:
Keep
and group -3x+8x which becomes 5x. Then keep -6.
Then it becomes the answer above.
Answer: C.( 0,-21)
Step-by-step explanation: Use the slope-intercept form to find the slope and y-intercept.
Round to tens: 240 + 370 = 610
round to hundreds: 200 + 400 = 600
hope this helps