-20+1= -19
-19/2= -9.5
Check:
-9.5x2= -19
-19-1= -20
Answer: F. Students 1 and 4.
Step-by-step explanation: Students 1 and 4 because algebraic expressions do not have equal signs, and students 1 and 4 don't have equal signs, as equal signs can be found in algebraic <u>equations</u>.
Answer:
-|b| < b
Step-by-step explanation:
-b where?
It depends on the question, but if the question is, how many is there....
It usually means to <u><em>add</em></u>
(What is the question anyway?)