They are opposites of each other.
-13.2 + 8.1 = -5.1
13.2 - 8.1 = 5.1


- A) 2/10 + 8/100 = <u>0</u><u>.</u><u>2</u><u>8</u>
- B) 13/100 + 4/10 = <u>0</u><u>.</u><u>5</u><u>3</u>
- C) 6/10 + 39/100 = <u>0</u><u>.</u><u>9</u><u>9</u>
- D) 70/100 + 3/10 = <u>1</u>
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<em><u>#</u></em><em><u>carry </u></em><em><u>on </u></em><em><u>learning </u></em><u><</u><u>3</u>
You could use graphs like hundreds graphs ;/
All I know or all I understood was both 7 and 8 aren’t functions. Hope this helped
Any detailed source to make answering the question easier....And is that a question or not?