Product means multiplication.
0.6 * 7 = 4.2
The product of the expression
is the expression 
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Given the expression:

The product of the expression
is the expression 
Find out more on equation at: brainly.com/question/2972832
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Answer: 2nd option
Step-by-step explanation:
Answer: 4d+3
I'm not sure if that's right
Answer:
0.3
Step-by-step explanation: