We are interested in selecting 2 people from the 7-person task force.
n = 7
r = 2
nPr = n! / (n-r)!
7!
------
(7-2)!
=
7!
----
5!
7×6×5×4×3×2×1
------------------------
5×4×3×2×1
= 7×6
= 42
<h2><u>Corect option</u> :</h2>

<h2><u>Answer with steps</u> :</h2>
Quantity of water she needs 
Number of servings she needs = 10
Number of cups of water she will need :



Thus, she needs
of water.
Therefore, the correct option is 
Yes because 1 1/4 + 1 1/2 = 2 3/4