i don’t think all these answers are correct please help and check them to see which r wrong and right

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

Emily convinced her mom to buy a giant box of her favorite cereal. her mom doesn't think the box will fit on their shelf. the volume of the box is 1000 cm^3 . the base of the box is 25 cm by 10 cm

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition