A bag contains white marbles and red marbles, 20 in total. The number of white marbles is 4 less than 2 times the number of red marbles. How many white marbles are there?

Use the graph of the sine function y=2sinθ shown below

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?