Answer:
is 20 dollers cause 5 take away 3 is 20 so 50 take away 30 is 20
Answer: ok so I am bad at this but i would pick.....the top one
Step-by-step explanation:
Answer:
(3x -1) (3x+1)
Step-by-step explanation:
9x^2 - 1
Rewriting
(3x)^2 -1^2
This is the difference of squares a^2 -b^2 = (a+b) (a-b)
(3x -1) (3x+1)
Answer:12
Step-by-step explanation: