Chapter 8.5, Problem 67E

(a)

To determine

$nCr$ for $n=8\text{ and }r=3$.

(b)

To determine

$nCr$ for $n=7\text{ and }r=2$

(c)

To determine

$nCr$ for $n=12\text{ and }r=1$.

(d)

To determine

$nCr$ for $n=11\text{ and }r=1$.

(e)

To determine

$nCr$ for $n=6\text{ and }r=6$

(f)

To determine

$nCr$ for $n=15\text{ and }r=2$

(g)

To determine

$nCr$ for $n=100\text{ and }r=2$

(h)

To determine

$nCr$ for $n=100\text{ and }r=98$