Step-by-step explanation:

Answer:
broo its been so long its 2020 now dude and ur question is a most recent bruhhhhhhhhhhhhhhhhhhhhhhhhh
Step-by-step explanation:
True, -4 seems bigger because 4 is bigger than 3 but it's negative and is further away from 0
During a week:
Kevin works 3z during 5 days
kevin work (4z-7) during 1 day.
Kevin work 0 during 1 day.
z=unit time
f(z)= number of hours kevin works in one week.
f(z)=5(3z)+(4z-7)+0
f(z)=15z+4z-7
f(z)=19z-7
The number of hours kevin woirs in one week in terms of z is:
f(z)=19z-7