Please help me with this problem converstion 0.04 ug/ul to ng/mL

My answer is: 0.04 ug/ul = 40,000,000 ng/mL is this correct?

2 answers

That is correct
I don't agree with either answer.
https://www.google.com/search?q=0.04+micrograms%2Fmicroliter+to+nanograms%2FmL&ie=utf-8&oe=utf-8