It’s zero, I think. Because
3 doesn’t round up. It’s stays the same. But since there is nothing in the hundred place. It is 0.
It would be 28-10=x because your ending up with 28 after earning 10 you would get that. Hope this works!
DrH = DrT + 0.019
DrE = DrH - 0.020
DrH is the most and DrE is the least
D- It is an enlargement with a scale factor greater than 1.
From the pre-image to the image, the scale factor is 3.
First, u do -9+8x-4+8
Then, U simplify. The answer is 8x-5