Omg that so nice I love this app sm
Download photomath and it will give u step by step instructions

<u>Given expression is </u>

can be rewritten as

We know,

And

So, using this identity, we


can be further rewritten as





<u>Hence, </u>

42,600 - 25,800 = 16800. That is the increase in 15 years.
You then calculate the increase as a percentage of the original population; 25,800.
16,800 / 25,800 * 100 = 65.11%
The triangles are similar, they aren't congruent (identical) though as we don't know if they share a common side