I think it’s D. 102 but it may not be.
Simple, finding markdown, use these two formulas.
Markdown=Original-New
and
Percent Markdown= Markdown Amount/Original*100
So,
Markdown=612-450
M=162
Markdown%= 162/612*100
M%=0.2647*100
M%=26.5 (rounded)
Thus, there was a 26.5% decrease.
The tortoise moves for 2min. & 30seconds.
Answer:
The slope is 
Step-by-step explanation:
The slope of the line passing through
and
is given by the formula;

The given line contains;the points (2, -6) and (-3, 1).



The slope is 