Can someone help me with number 7. Please.

Answer:
exponent: 3; base: 4
Step-by-step explanation:
An exponent is used to signify repeated multiplication. In a typeset expression is has a superscript format. The base is the value being repeatedly multiplied.
[tex]4^3=4\cdot4\cdot4[/tex]
The exponent is 3.
The base is 4.
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In plain text, an exponent is preceded by a caret (^). If the exponent consists of more than a single constant or variable, it must be enclosed in parentheses. The above expression would be written as 4^3.