There are 1,920 fence posts used in a 12-kilometer stretch of fence. How may fence posts are used in 1 kilometer?

Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

Adice is rolled 5 times. how many possible rolls are there? ( determine the number of outcomes using only the fundamental counting principal )

Name the quadrilaterals that have four equal sides.