How do I solve this problem?

Question

h(x)=[[x+4]]

h(3.8)

h(-20.8)

Answer 1

greatest integer of (X+4)

h(3.8) = [[ 3.8 + 4]] = [[ 7.8 ]] = [8] = 8

h(-20.8) = [[ -20.8 + 4 ]] = [[ -16.8 ]] = [ -16] = -16