Number of Terms:

1.) 3x

answer: 1 term

2.) 2x+3-1 ----> 2x+2 (simplified)

answer: 2 terms

3.) 5y-1

answer: 2 terms

4.) 7x-11y

answer: 2 terms

5.) x(6xy) ----> 6x²y

answer: 1 term