It really depends on what kind of problem. like if you are doing a word problem or whatever than you should read the question a couple times, underline key words, DECIDE which operation to use, refer to the question and see if it makes sense. Hope I helped :)
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
For this question, we can divide both numbers by 8, as they are both divisible by 8. Then, we will be left with our answer, which will be a 3 degree drop every hour.

Let's solve the given equation ~








Hence, we get -6 and 1 as our roots ~
So, the correct choices are : B and D
Answer:
The mean is ^6
Step-by-step explanation: To figure out the mean, add up the numbers, 7+3+5+2+9+10=36 then divide it by how many numbers you have 36/6=6