Answer:
To get from ax-5a+4x-20 to a(x-5)+2(2x-10). You had to of found a common factor.
Another (better) way to simply this would be finding the greatest common factor.
a(x-5)+4(x-5)
(a+4)(x-5)
This might not be right sorry :
14+14=28
79-28=51
9x4=36
51-36=15
15÷3=5
therefore (I think) there should be 5 inches between each picture.
Answer:
math
Step-by-step explanation:
w=3(2a+b)-4
=6a+3b-4
Answer:
k = 12
Step-by-step explanation:
The constant of proportionality k is the ratio
k = 
Use any ordered pair from the table to find k
Using number of laps = 240, number of swimmers = 20 , then
k =
= 12
I think that it is the first line. I am not really sure what the question is asking so I may be wrong. Sorry if I can’t help