Answer: it should be 1,215

3.

1000 miles per month.

12 months in a year.

1000 × 12 = 12000 miles per year

Oil change every 4000 miles.

12000 ÷ 4000 = 3

Therefore 3 oil changes per year.

**Answer:**

(-3, 9)

**Step-by-step explanation:**

If a point was reflected across the y-axis, then the y-coordinate would change signs (from negative to positive or from positive to negative). Using this, we could find the original point by changing the sign of the y-coordinate. As you may already see, this is really just reflecting the point across the y-axis again. By doing this, you get the point (-3, 9).

The point would be (-3, 9).

I hope this helps. :)

<span>first stack = 12 blocks second stack = 12 + 3 = 15 blocks third stack = 15 - 7 = 8 12 + 15 + 8 = 35 blocks

So: D XDD

</span>

27/84 and 18/56

they are both a simplified version of 54/168