Answer:
1st and 3rd statements are true
Explanation:
2u + 9v + 1
the constant term is the term with only a numeric value
in this case the constant term is 1
the coefficient of the term 2u is 2 ( the value in front of the variable u )
the coefficient of the term 9u is therefore 9
there are 3 terms in the expression 2u , 9v , 1
these terms are being added together , thus
2u + 9v + 1 is the sum of three terms