Answer:6205
Step-by-step explanation:
16: B; irrational number, real
17: C; whole, integer, rational, real
18: B; real, rational, integer
4/10 × 1/6 = 2/30
You can cross cancel 4 and six...then multiply 2/10 × 1/3 which equals 2/30
If you want you can simplify 2/30 to 1/15