Which expression represents the composition [g-f. h](x) for the functions below?
f(x) = 5x-4
g(x) = 5x2
h(x) = 3x

The lengths of two sides of a triangle are 9 and 15. what can be said about the length of the third side? a. it must be greater than or equal to 6 and less than 24. b. it must be greater than or equal to 6 and at most 24. c. it must be greater than 6 and less than 24. d. it must be greater than 6 and at most 24.