What is 9/5 of 45?

i am doing formulas but this part is confusing me

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!

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth