Answer:

Step-by-step explanation:
To write the factored form, multiply a*c from the standard form
. Here it is 4*1 = 4.
Then find factors of 4 that add to b=-4.
4: 1,2,4
-2+-2 = -4
Split the middle term into -2x+-2x and factor by grouping.

Answer:
1.666667 headphones per hour (simplify this)
Step-by-step explanation:
divide the top and bottom by 3 and you should get your answer
Congruent and similar because they have the same measurements.
Answer: i.. do.... not... know..
Step-by-step explanation: