What is the circle circumference in terms of pi with a diameter of 9.4 inches

I’m not good at math can i have ? ?

Ms. lopez has 4 liters of chemicals that she is going to pour into beakers. each beaker will have 1/4 of a liter of chemicals, how many beakers can ms. lopez fill? draw a model to support your work. (it's ok if you dont)

The length of a basketball court is 84 feet. kareem starts at one end of the court and runs 20 feet forward and then 8 feet back. how many more times will he have to do this until he reaches the end of the basketball court? what equation represents this relationship? !