Let's assume
actual cost is x
we are given
An ipod sold for $300, which was 200% of the actual cost
so, it's selling price is 200% of x
[tex] SP=\frac{200}{100} *x [/tex]
[tex] SP=2x [/tex]
we have
SP=$300
now, we can set them equal
[tex] 300=2x [/tex]
now, we can solve for x
[tex] x=150 [/tex]
so, actual cost is $150...........Answer
