Well seems like the question wants you to give an equation which should be something like x-3
If the question is, "What is the scale factor." That would be a scale (factor) of 2.
Answer:
The sum is
.
Step-by-step explanation:
Consider the provided information.
The given expression are - 10t and t - 10t
We need to find the sum of the opposite of -10 t and t - 10t.
The opposite of -10 t is 10 t.

Remove the parenthesis.

Simplify the number

Use Additive inverse.

Hence, the sum is
.
I assume it is negative three fourths (c) because when you graph that line, it is the closest line that meets the needs of the points.