ANSWER:
28
STEP-BY-STEP EXPLANATION:
We can calculate the number of different ways by means of the formula of combinations that is the following:
[tex]_nC_r=\frac{n!}{r!(n-r)!}[/tex]
In this case r = 2 and n = 8, we substitute and calculate the quantity in different ways, just like this:
[tex]\begin{gathered} _8C_2=\frac{8!}{2!(8-2)!}=\frac{8!}{2!\cdot6!} \\ \\ _8C_2=28 \end{gathered}[/tex]
Therefore, the number of ways she can choose is 28
