The radius of a circle is 4. Using π, how do you write the ratio of the circumference of the circle to the diameter of the circle?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

What’s -11-33k and factor each expression completely