Find the surface area of the pyramid. Base Area = 100 cm, slant height of 12 and length of 6, its also a hexagonal pyramid

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

Which representation has a constant of variation of -2.5

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).