Sandy can rake 20 bags of leaves in 4 hours. Sarah can rake 28 bags in 4 hours. If they work together, how long will it take to rake 54 bags of leaves? (A) 4 1/2 hours
(B) 4 hours
(C) 3 3/4 hours
(D) 2 hours

Graph the equationy= x+3[tex]y = x + 3[/tex]

(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?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)