-13is negative and is 13 spaces away from 0. 15 is positive and is 15 spaces away from 0.
The answer is D.64
Explain i have the test myself
For the first one t could be a volcano that’s slowly caving in over time, and for the 2nd one it could be a store that’s selling something, and the cost per person was bigger when there was less people, but since more people came they didn’t have to charge as much ^ ^
☁️ Answer ☁️
x^2 - 2xy + y^2
(Im not sure if it's correct)
Hope it helps.
Have a nice day noona/hyung.