Answer:
<h2>D. 3</h2>
Step-by-step explanation:



Mark points in the coordinate system.
Lead a line through these points.
Read x-intercept.
Well, you lost the original $100 and then you gained back $70 but gave away $70 worth of merchandise, so it evens out and you lost $100 in total
Answer:
0.920
Step-by-step explanation:
To calculate this, we proceed to the t-table
Using degree of freedom 5 and significance level of 0.2, the t-value is 0.920