I + 6 = r
4r = s
i + r + s = 126
4i + 24 = 4r
s= 4r
i = r-6
4i+24=i+6
-3i=18
i = 6
Solve the rest
The answer is c, 2.To find this, look on the graph for a point with the y value of -1. (2,-1) is the solution.
Adding 2x to both sides we get
y = 2x
This is direct variation where the constant is 2.
The domain is the set of allowed inputs, in this case t values. The smallest t value allowed is t = 0. The largest is t = 165. So that's why the domain is

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The range is

since H = 0 is the smallest output of the function and H = 40,000 is the largest output. Like the domain, the range is the set of possible outputs of a function.
Answer:
There was 62.23% change in radius as the ion formed.
Step-by-step explanation: