Final answer:
The coefficient of the second term in the expression 7+w+x+9vw is 1.
Step-by-step explanation:
The coefficient of the second term in the expression 7+w+x+9vw is 1.
The second term in the expression is 'w', and its coefficient is the number in front of it, which is 1.
To find the coefficient of a term, you look at the number directly in front of the variable (or variables) in that term. So, in this case, the coefficient of the second term 'w' is 1.