Answer:

Step-by-step explanation:
We convert some numbers to decimal fractions:
-2 = -2.00
-3/4 = -0.75
-0.45
3% = 0.03
0.36
We order
-2, -0.75, -0.45, 0.03, 0.36

other method
(use a calculator)

Times 4 because, 5 times 4 is 20, 20 times 4 is 80 and so on.
I think it would be 72+4x=400
400-72= 328
328/4= 82
So the answer would be 82=x
Answer:

Variable is a symbol that represents a quantity in a mathematical expression, as used in many sciences. Variable (research), a logical set of attributes. Variable star, a type of astronomical star.

A constant, sometimes also called a "mathematical constant," is any well-defined real number which is significantly interesting in some way. A function, equation, etc., is said to "be constant" (or be a constant function) if it always assumes the same value independent of how its parameters are varied.
Answer:
what do you mean?
Step-by-step explanation: