Can you please add the picture with the problem, then I will answer your question ?
Answer:
<em>The answer is 1.2001 * 10^-5</em>
The answer is if you convert. we cant see the number line so, we cant tell you the second part of the problem.. attach the image please.
ok so convert.. -13/4 becomes -65/20 and 2/5 becomes 8/20, so add that and get -57/20, then simplify how you want to. thats your answer
<span><span>the answer is 10<span>x^7</span></span><span>y<span>^2</span></span></span>