Question 1156430

Use logb(4)=1.386 and/or logb(7)=1.946 to find logb(28)
<pre>Hint: {{{matrix(1,5, log (b, (28)), "=", log (b, (4 * 7)), "=", log (b, (4)) + log (b, (7))))}}}
Is that enough for you to figure this thing out?