The letters of the word combine are placed at random in a row. in how many ways can an arrangement occur such that all vowels are placed together? show all of your work for full credit.
(this is a permutation math problem)

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?