B is true because 0-(-x) = 0 + x = x
.503 is written as a decimal.
You move the dot left 2 times
Please Rewrite you question so it makes sense.
Good Luck :D
The statement that are important when representing functions are:
- It is important to explain what your variable represents and to include units.
- Functions may depend on more than one variable.
<h3>What is are
functions?</h3>
A function can be described as the relation between a set of inputs that have one output each. it help to display the relationship between inputs in a case whereby each input is related to exactly one output.
We can denote the function by f(x) where x is the input.
Learn more about function at:
brainly.com/question/1415456
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Expression,
• 4(3a) - 2(4a) and 4a2
is not equivalent.
