For the answer to the question above, I'll do it step by step so you could follow.Explanation:
Use Change of Base Formula
<span><span>logb m </span>= <span><span>loga m/</span><span>loga b
Then substitute the values
</span></span></span>log2 74 =<span>log10 74 / log10 2</span>
In the calculator Just type
log 74 / <span>log2</span>
And the answer should be
<span>6.2094533656</span>
<span>I hope i helped you with my answer.</span>