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A Graphical Approach to College Algebra

\text {Solve each problem involving combinations.}

Delegation Choices Seven workers decide to send a delegation of 2 to their supervisor to discuss their grievances.

(a) How many different delegations are possible?

(b) If it is decided that a certain employee must be in the delegation, how many different delegations are possible?

(c) If there are 2 women and 5 men in the group, how many delegations would include at least 1 woman?