I don't expect you to pay me or give me brainliest. Just want to help.
Step-by-step explanation:
I'll start with the answers to each one, then explain exponents.
1) 5^4 = 625
2) x^3 = 0
3) 2^-1 = 0.5
4) 2^0 = 1
An exponent is a quantity representing the power to which a given number or expression is to be raised. (Don't use this exact definition in your answer.)
I'll use 5^4 as an example.
5^4 has a positive exponent, which means 5 is multiplied by itself 4 times.
5 * 5 * 5 * 5 = 625.
The number 5 here is considered the base.
In x^3, x is the base.
In 2^-1, 2 is the base, and so on.
If the exponent is 0, like 2^0, the answer is 1, regardless of the base.
5^0 = 1, 10^0 = 1, 3^0 = 1, and so on.
If the exponent is negative, like 2^-1, you will use this process;
2^-1 = 1/(2^-1) = 1/2 = 0.5
Here's a better example.
2^(-4) = 1/(2^4) = 1/(2*2*2*2) = 1/16 (or) 0.0625
Good luck mate. :)
