Dan, Ellen and Fred share some money in the ratio 4:7:9.
Ellen receives £720 more than Dan.
Calculate the total amount of money that they shared.

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily

Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two