Colllect like terms 21b+b= (simpify answer)

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

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 (%).