Answer:
Its just a+b
Step-by-step explanation:
The √ and ^2 cancel eachother out
Answer:
y(3y - 4)
Step-by-step explanation:

Both have y.
Factor y out of 

Answer:
15
Step-by-step explanation:
-6y-5
Substitute 1/2 for y.
-6y-5
-6(1/2)-5
-3(-5)
15
Add 15 and 12 then divided by 144
The first thing to do is isolate the x so get rid of the -2.7 but since is a negative you are going to add it to 10.3 so>>> 2.7+10.3 =13 x≥13 is the answer.