I believe that the only combinations would be EF and FE.
Studying effectively is more harder than it sounds, but the best way to get in the zone in finding what things you prefer. Do you like silence or do you like to listen to music? Another thing when looking forward to studying is determining what you want to accomplish in each study session. To ensure you are studying your brain to the max is making flash cards and testing your own limit’s.
The answer would be the first one.
I cannot see the text. If you take another picture zoomed in I will answer it.
Answer:
Part A: x is the number of windows
company A=6x+12
companyB=5x+15
Part B
company B
Part C
$3
Step-by-step explanation:
Part B
A 6*8+12=60
B 5*8+15=55
Part C
(6*6+12)-(5*6+15)=3