Final answer:
The expression has three terms: 5xy, 7b, and 13. The second term, 7b, has two factors: 7 and b. The constant term in the expression is 13.
Step-by-step explanation:
a) There are three terms in the expression: 5xy, 7b, and 13.
b) The second term is 7b. It consists of two factors: 7 and b.
c) The constant term is 13.
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