For the first part
5 an hour plus 50
Can you make an equation out of it
Answer:
![f.g(x) = f(g(x))\\f(g(2)) = ?\\\\g(x) = x+3 \\g(2) = 5\\\\f(x) = x-3\\f(g(2)) = f(5) = 2=f.g(2)](https://tex.z-dn.net/?f=f.g%28x%29%20%3D%20f%28g%28x%29%29%5C%5Cf%28g%282%29%29%20%3D%20%3F%5C%5C%5C%5Cg%28x%29%20%3D%20x%2B3%20%5C%5Cg%282%29%20%3D%205%5C%5C%5C%5Cf%28x%29%20%3D%20x-3%5C%5Cf%28g%282%29%29%20%3D%20f%285%29%20%3D%202%3Df.g%282%29)
Step-by-step explanation:
-25 is an integer and a rational number.
<h3>What is number system?</h3>
- A system of writing numbers is known as a number system.
- It is the mathematical notation for consistently employing digits or other symbols to represent the numbers in a particular set.
- It represents the arithmetic and algebraic structure of the numbers and gives each number a distinct representation.
Now,
- Natural numbers are positive integers with a range of 1 to infinity; nevertheless, they do not include zero. -25 wouldn't be a natural number because it is a negative number.
- A group of numbers known as a whole number consists of all positive integers and 0. This wouldn't be a whole number because -25 isn't a positive number.
- Any real number that cannot be represented as the quotient of two integers is said to be irrational. Square roots of irrational numbers are also frequently seen. -25, however, is not a square root.
- Any number that can be expressed as a ratio, or a fraction, of two integers, is referred to be a rational number. Fractions, decimals, negative decimals, and other rational numbers are very prevalent. Since -25 can be represented as a ratio of two numbers. it is a rational number.
- A whole number that can be either positive, negative, or zero is known as an integer. As -25 is negative and a whole number( when positive), it is an integer.
Hence, -25 is an integer and a rational number.
To learn more about number system, refer to the link: brainly.com/question/13162939
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![3x - 3(x + 1) = 3 \\ = > - 3(x + 1) = 3 - 3x \\ = > - 3(x + 1) = - 3(1 + x) \\](https://tex.z-dn.net/?f=3x%20-%203%28x%20%2B%201%29%20%3D%203%20%5C%5C%20%3D%20%3E%20-%203%28x%20%2B%201%29%20%3D%203%20-%203x%20%5C%5C%20%3D%20%3E%20-%203%28x%20%2B%201%29%20%3D%20-%203%281%20%2B%20x%29%20%5C%5C%20)
Hence,
![x](https://tex.z-dn.net/?f=%20x%20)
is cutting each other in this equation.
So,
![x](https://tex.z-dn.net/?f=%20x%20)
can be of any value.i.e.,infinite.
Hope this will help you.
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