Answer:
d = -8
Step-by-step explanation:
Isolate the variable, d. Note the equal sign, what you do to one side, you do to the other. Divide -4 from both sides of the equation:

d = -8 is your answer.
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Without context, I can only assume that<em> e</em> is a variable, which means that it is an unknown number. Any letter can be a variable, and you solve for that variable by isolating it on one side of the equation. Example: e = 12
Answer:
Calculating Growth Rates. The annual percentage growth rate is simply the percent growth divided by N, the number of years. ... The population of Lane County grew 12 percent between 1980 and 1990 or at an rate of 1.2 percent annually.
Step-by-step explanation:
Is the answer ur looking for 25