Here we will use exponential form, which is

Initial value, y0 = 500
Double of 500 = 1000



Required equation is

Answer:
C. 48
Step-by-step explanation:
first you solve 84 divided by 7 and your answer is 12 then you do 12x4 which is 48
ANSWER
C. 7
EXPLANATION
We want to evaluate

We use the order of operations PEDMAS.
Dealing with the parenthesis first,we have

Note that:

and

Our expression now becomes:

Next, we add to get:

We finally subtract to get,

The correct answer is C
Y=2x +4 is non proportional because b does not equal 0
The b in the equation is 4
As long as the y intercept is not more or less than 0, than it will be proportional
The answer is 48.5, did a question similar to this on a quiz and got it right