Answer:C
Step-by-step explanation:
Hello there! The value of x is 20 or -20
"20 or - 20" is one answer so you are supposed to answer 20 or -20, not choose only one.
Step-by-step explanation:

First, we simplify 5² and 4²

Multiply the whole equation by 25 to get rid of the denominator.

Square both sides and solve the equation.

Also don't forget to write "plus or minus" symbol when we are solving a quadratic equation by squaring both sides.

Answer:
A. quadrant l
Step-by-step explanation:
Edge 2020
Terminating because the decimal ends rather than going on forever which would be repeating
The decimal gives after the 9. There are four places behind the decimal between the two numbers being multiplied so there have to be 4 places behind the decimal in your answer.