There are 8 singers competing at a talent show. In how many different orders can the singers appear?
A- 56
B-64
C-40,320

Elijah and his sister went to the movies. they had $34 altogether and spent $9.50 per ticket. elijah and his sister bought the same snacks. write and solve an inequality fotlr the amount that each person spent on snacks. interpret the solition

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.