if given log(a)=b, where no base is stated, we assume base 10, or 
also,
translates to/can be written equivilently as 
therefore, given
where we want to find ?
assume base 10 and translate

since we cannot raise a positive number to any real power and give a negative number, ? is not a real number and therefore, there are no real solutions
if we do want to find a solution, we can use Euler's idendity
where i is the complex number i=√-1 and e is euler's number
we can try to change bases to find the value of ?


so

taking ln of both sides

using log rules


divie both side by ln(10)

in a+bi form

there are no real numbers that it evaluates to
however, it does evaluate to a complex number which is
or aproximately 1.11394+1.36438i
No they cross each other like a highway. You are on the underpass and your friend passes over you. As in, they are crossing a bridge & you are below them.
15 ft = 180 inches
180/18 = 10
Therefore, each part is 10 inches long.
-3 1/2 is rational because the decimal ends at -3.5. It is not sqrt(5) because the decimal never ends and the same follows for pi and 9.23157.