Your neighbor had to drop the selling price of her home from $180,000 to $165,000. what percent did the price get lowered? round to nearest tenth

You could do 165,000 divided by 180,000. This is 165000/180000, and that will give you the percentage that 165000 is of 180000 in decimal form, which is 0.9167.
Then we round to the nearest tenth, which is 0.92
0.92 as a percentage is 92%.
100% - 92% = 8%
The price of the home dropped by 8%.

Yes, two vertical lines can be complementary