Hello!
We know that the rate of change is just like speed as in the last Q so....
usually the rate of change is y/x so in this case, The Correct Answer is 100%
Option B "25".
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The answer is c to your problemo
Your total expense would be 35$ because 25+10=35 and then since you are talking about money you add the money sign. Your answer would be 35$
