So my questions are: rewrite each expression below without negative or zero exponents and numbers are 4 to the power of negative 1

We are given expression:

We need to write the expression without negative exponents.

We need to convert it in positive exponents.

We know the rule of negative exponents as following:

On applying same rule, the 4 would go in the bottom of 1.

We know 4^1 = 4.

Therefore,

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right