Indicate whether the following statements are true (t) or false (f).
1. √49 is a rational number
2. 2 is a real number
3. π is a real number
4. -17 is an integer
5. √3 is a rational number
6. 0 is a natural number
7. 32 is an integer

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.