Select all the possible input-output pairs for the function y = x3 .
A. (-1,-1)
B. (-2,8)
C. (3,9)
D. (5)
E. (4,64)
F. (1,-1)

For f(x)=2x+3 and g(x)=x^2- 8 find (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 (%).

I'm confused on this could anyone me and show me what i need to do to solve it.