Answer:
(-3, -1)
If you rotate 180, you just flip the signs.
(Ms)Kisha is correct.
How?
Well, I figured this out by using common sense. 8 mangoes are 10 dollars. Since the price is higher than the amount, so it has to be at least more than one.
We could write more ratios. You can always write more ratios. You just multiply/divide both sides. Examples below:
2:5
16:20
Given:
To find:
The missing value.
Solution:
Let x be the missing value.
We have,
Subtract 
from both sides.
Multiplying both sides by 5, we get
So, the missing value is 3.
Therefore, the correct option is C.
