40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2
9-2(-3)+6= 9+6+6 Your answer should be 21 if I read your question correctly
answer:
48 + 12 + 35 + 57 + 42 + 15 + 74 + 29 = 312
divide by number of numbers,
312 / 8 = 39
the mean is 39.
<em>if correct, please mark the brainliest :)</em>
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recall that, log <--- with no apparent base, implies base10, so you can just plug that in your calculator
for the change of base rule, it doesn't really matter what base you use, so long is the same above and below, it just so happen, that we used base10 in this case, but could have been anything, same result.