Answer:
C Multiply/divide both sides by the same non-zero constant
Step-by-step explanation:
Given


Required
How to get B from A
It can be seen that B is a factor of A.
And to get B from A, all you need to do is divide both sides of A by 3.
i.e.


Hence, from the list of given options.
<em>Option C answers the question because 3 is a non zero constant and both sides of the equation were divided by 3</em>
Step-by-step explanation:
30. i already know this sa. . ....
Answer:

Step-by-step explanation:
We are given that
Initially the difference between the cake's and the cooler's temperature ,a=50 degree Celsius

We have to find the function that gives the temperature difference in degrees Celsius D(t).
We know that

Substitute the values


This is required function that gives the temperature difference in degrees Celsius.
Answer: C. 1998, 2000, 2002