Answer:
Z-score is 1.75
Step-by-step explanation:

You can find the Z-score from the standard normal table. Just read the table in reverse.
In this case, Z = 1.75
Answer:
400cm²
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
this needs evaluation of Bella's income on every chore.
say when c = 1, d = 3.5*1+11= 14.5
c=2 d = 3.5*2+11= 18..evaluate for c=3,4,5.
with that it can be found that bella earns more than sweet t. so choice c