Answer:
C. a numerical expression.
Step-by-step explanation:
Right away, what you should know is that this is an expression. Equations are expressions, except wiht an equal sign. This is not algabraeic though, since there is no valuable (for example 3x, or 7a). So, through the process of elimination, the answer would be a numerical expression.
Hope this helps!
7,14,21,28,34,etc. just add 7 every time
It is a repetive decorative design :)
Answer:
125 is the correct answer because sum of two opposite interior angles is equal to exterior angle
Substitution is plugging one equation into the other.
Elimination is where you eliminate one equation.
Graphing is when you graph the equations and see where they overlap.