Abag of marbles contains 12 red marbles 8 blue marbles and 5 green marbles. if three marbles are pulled out find each of the probabilities. find the probability of pulling three green marbles out with replacement

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39