Six siblings arrive at a photographer’s studio to have pictures taken. in how many ways can the photographer arrange the six siblings for the photo?

There are n! ways of arranging n elements. This is because you have n possible choices for the first position, the remaining n-1 choices for the second position, and so on, until you're forced to pick the only remaining option.

So, there are

ways of arranging 6 elements in a certain order.

step-by-step explanation:

(s)he  is right it would be 5.5% because it is smaller than 15.5% or anything smaller than 15.5% in general

by definition, an arc subtended by a central angle of some given measure has the same measure. so .