William has a 26-liter glass tank. First, he wants to put some marbles in it, all of the same volume. Then, he wants to fill the tank with water until it's completely full. If he uses 85 marbles, he will have to add 20.9, point, 9 liters of water. What is the volume of each marble?How much water is necessary if William uses 200 marbles? Could I have some help with this?

What is the radius of the cone in the diagram? round your answer to the nearest whole number

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x