The answers to your questions are 1.D, and 2.C
-5 ÷w=?
Answer the rest on your own but I just set it up for you.
The series formed by using exponential property we get : 
What is Exponential Property?
- Properties of Exponents : It is also called power or degree.
- It tells us how many times the base will be multiplied by itself.
- The properties of exponents or laws of exponents are wont to solve problems involving exponents.
- These properties also are considered as major exponents rules to be followed while solving exponents.
Using exponential property on given values we get,

Complete series using exponent property is:
Learn more about exponential property here:
brainly.com/question/25633462
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The answer is :
23 3/8 can be written as 23.375