Answer:
It's exactly normal, because both populations are normally distributed.
Step-by-step explanation:
khan :)
W=12.5c+39.2
Her collection already has a weight of 39.2 g so you must add that to every new car bought each with a weight of 12.5 g.
Divide both sides by 49/36 to get y by itself:


Simplify this fraction:

Now you have your answer:
Where are the sets? I don't see any...
Answer:
h(x) = 44
Step-by-step explanation:
h(x) = x² - 5, h(-7) means x = -7
h(x) = (-7)² - 5
h(x) = 49 - 5
h(x) = 44