Answer:
d
Step-by-step explanation:
in ''d)'', all the numbers are irrational
When you find the mean you add all of them together. Then you divide your answer by how many numbers there are that you added.
So what I did was add 29+30+28+32+29+31+27= 205
then divide 205 by 7 and you get 29.285
D because it is a decline and they are loosing 75% of their jobs
It is rational number because irrational numbers are endless
Answer:
the first on 5×107=535 the second one 3×105=315