You would solve this with simultaneous equations, so if we write it as:
5n + 2p = 9
3n + 2p = 6
(subtract)
2n = 3
÷ 2
notebooks = 1.5
Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
- 4.5
2p = 1.5
÷ 2
pens = 0.75
So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!
You can look up cymath.com it will work the problem out for you and show you the steps.
3:8 can also be written as 3/8
<span>12:32 can also be written as 12/32
</span>

<span>So thus 3:8 is equivalent to 12:32</span>
667.302 would be the correct answer, I did it in a calculator