In the expression 4 to the power of 9, the number 9 is called the D. exponent.
Number four here is the base, and the exponent is always shown as a superscript to the right of the base. It shows how many times you are supposed to multiply the base by itself.
Answer:

Step-by-step explanation:
Complete question

Required
Solve for x
We have:

Collect like terms

Multiply through by 

Make x the subject

Answer:
what grade is this???
Step-by-step explanation:
Answer:
The answer is A
Step-by-step explanation:
The point is at one then it goes up to 600 so yea