1. Find the number of combinations from $17$ objects picked $5$ at a time.

2. Find the number of combinations from $12$ objects picked $9$ at a time.

3. Find the number of combinations from $15$ objects picked $9$ at a time.

4. Find the number of combinations from $18$ objects picked $8$ at a time.

5. Find the number of combinations from $13$ objects picked $7$ at a time.

1. $6188$

2. $220$

3. $5005$

4. $43758$

5. $1716$