Answer:
<h2>5 cm</h2>
Step-by-step explanation:
The triangles are similar. Therefore the corresponding sides are in proportion:
<em>cross multiply</em>

<em>divide both sides by 32</em>

Answer:12.5
Step-by-step explanation:
18/30 divided by 6 simplifies to 3/5.
Simplest form = 3/5
The area of the trapeziod is 337.5
Answer: The pack of 20.
Step-by-step explanation:
It is because a pack of 20 sells for 2.50 for each pencil, and the pack of 12 sells for 2.51 per pencil, so that means the pack of 20 is cheaper.