A lemonade recipe calls for ¼ cup of lemon juice for every cup of water. Use the table to answer these questions. What does y represent?

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Acircle has a circumference of 28.36 units what is the diameter of the circle