Answer:
The width will be 
Step-by-step explanation:
Thinking process:
Let the model be:

factoring out 4 gives:

Factorizing the expression in the parentheses gives:

Therefore, since the expression in the parentheses cannot be factorized further, the expression is:

Step-by-step explanation:
x is 12 because DE is twice BC
Answer:
8/20-5/20
Step-by-step explanation:
She used two trapezoids.
She put one trapezoid on top and one on the bottom.
The shape she ends up making is a hexagon.