Answer:
1/3 is the slope and if it’s less than or greater to that, then the bottom half of the graph is shaded in.
18÷19=0.94736....................
If it's a regular octahedron, then you can calculate it using the formula

where

is the length of the edge.
If it's not regular, you have to calculate the area of each side individually.
Answer:
$817.50
Step-by-step explanation:
Hello Matt7151!
To find the total amount, we will first need to find how much tax.
We can express 9% as the fraction
.
× 750 = 67.50
So she's paying $67.50 sales tax.
750.00
67.50
-------------------
817.50
So Debra's really paying $817.50.
Thus, the answer is 
.