Subtract 7 from 4 and Mark it on the grid, then, in order to reflect it, mark the same line in the (-,+) corner. (new coordinates are (-5,7)(-5,3)
Answer:
The solution is 1.
Step-by-step explanation:
Logarithm:
Suppose we have a logarithmic equation in the following format:

It means that:

In this question:

Which means that:

Every number, elevated to 0, is 1. So

Which means that the solution is 
Answer: {a}_{10} = 128
Step-by-step explanation: