$900, but not too sure if this is a question to trick you.
Answer:


Step-by-step explanation:
Given

Required
Complete the model
[ ] x = 6.60
x = _ hundredths

Equate to x

Multiply both sides by 15



So, we have:
[ ] x = 6.60 =====> 
Recall that:


This implies that:

Hence:
x = _ hundredths =====> 
See the attached figures.
The area of this trapezoid = 576
cm²
Answer:
undefined slope
Step-by-step explanation:
There us change in rise but no change in run or x value. This means is a vertical line and it's slope is undefined.
<h3>I hope it is helpful for you </h3>