A range is the amount of time from a start of the action up to the end of the action so in your question where a function is created to present the amount of text sent each month. So the best possible restriction of the range is "The range would only include positive integers"
Ratio is just a fraction in other form. To create ratio we can just make fraction and transform it into ratio, so

Now we can simplify the ratio/fraction

= 4:3 - its the result
A.) The temperature rises 10 degrees over 3 hours.
(To explain my reasoning is because at 0 hours the temperature was 30 then at 3 hours the temperature moved up to 40 and at 6 the temperature moved to 50 which means every 3 hours its moving up 10 degrees)
Answer:
a = ±10/9
Step-by-step explanation:

Answer:
1 is inequality
replace the value were _2.