Answer:
C. -9
Step-by-step explanation:
The pattern is clearly subtracting 4 each time (or adding -4).
-5 - 4 = -9
21,000+21,000=42,000
I hope it helps
Answer:
Base
Step-by-step explanation:
An exponent is a number/letter written to the top-right of a mathematical expression called the base. It means that the base will raised to a certain power.
The radical sign is a symbol for the square root of a number.
