First Simplify addition and subtraction expressions: combining like terms. ...
Second Read and write an algebraic expression containing a variable. ...
Third Write word problems as algebraic expressions. ...
Fourth Read and write algebraic expressions using parentheses. ...
Last Evaluate one-step algebraic expressions by substitution.
Answer:
B. 
Step-by-step explanation:
We all suck at math... just lmk if you need more help...
Answer: where’s the question?
Step-by-step explanation:
Answer:
Step-by-step explanation: they are lines that form a right angle
Answer:
Step-by-step explanation:
Not likely (less than 50 %)