That’s not enough information to say how long he could do it. He could go slower or faster than her but by how much if so. So it’s not enough info.
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Step-by-step explanation:
C , looks like the right answer, and probably this is too late to help... :/ sorry
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you'll find lots of clouds over tropical climates and practically no clouds over desert clmates.
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The base (b) has to be positive and different of 1. The logarithm is the inverse of exponential, so:
logb(a) = x ⇒ a = bˣ
So, for b = 0 ⇒ 0ˣ = a
And there is impossible, "a" only could be 0.
For b = 1 ⇒ 1ˣ = a
And the same thing would happen, the logarithming would be to be 1, and the function will be extremally restricted.
For b<0, then the expression a = bˣ will be also restricted, and will not represent all values of a.
So, 0<b<1 and b >1.