A furniture shop refinishes chairs. Employees use two methods to refinish chairs. Method I takes 1.5 hours and the material costs $9. Method II takes 2.5 hours, and the material costs $6. Next week, they plan to spend 198 hours in labor and $918 in material for refinishing chairs. How many chairs should they plan to refinish with each method?

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14