Question

IV. Let k(x) = x - 1 represent the conversion from toes to moles. Let p(x) = 2x + 3 represent the conversion from moles to rolls. Create a composite function that converts toes directly to rolls.

Answer 1

k(x)=moles
p(x)=rollls

subsitute k(x) for x in p(x)

p(k(x))=2(x-1)+3=2x-2+3=2x+1

that is
p(x)=2x+1 for
p(x)=rolls
and x is toes