6c+31=4c+13 this question is equation formulae and inequalities

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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 (%).

Find the value of x. give reasons to justify your solutions! c ∈ ae