These are the answers to your questions
a.In short supply
b.5
c.5
Answer: The first place is warmer by .3 degrees Celsius or 32.54 degrees Fahrenheit
Step-by-step explanation:
Real numbers are all the rational numbers such as -7 and 4/3 and all irrational numbers.
The surface area of a sphere is

and if the original S.A was is enlarged to have it 9 times greater, the radius would be multiplied by 3 or roughly 2.99626 rounded off to 3.0.
For example, let us assign values.
Let A=90
A= 90*9 = 810

and

the first r is 2.68 and the second r is 8.03
then,

or rounded off to 3.
I think Z=16 I don’t know exactly sorry