Answer:

Step-by-step explanation:
we have

This is the equation of the line in point slope form
where
The slope is m=1
The point is (4,8)
Convert to slope intercept form
Isolate the variable y
Adds 8 both sides

Combine like terms

Convert to function notation

Answer:
What do you mean
Step-by-step explanation:
Cannot reduce, it is already in simplest form. You can convert it to a decimal though, 0.671875
Answer:

Step-by-step explanation:
Given the expression
, to solve the expression, we need to write both scientific notation to the same power of 10.

The expression above becomes
. On taking the difference;

The final expression gives the right answer