Answer
A only (2,3)
Step-by-step explanation:
If you graph it or plug it into Desmos that can also help
I would say D, determine if it can be factored by grouping (sorry, I forgot to put in the answer here).
Answer:
C. 4.2a + 0.8
Step-by-step explanation:
Given:
The two binomials given for addition are:
and 
Now, adding both the binomials, we get:

Distributing the positive sign inside the second binomial, we get:

Now, combining like terms using the commutative property of addition, we get:

Simplifying the above expression, we get:

Therefore, the resulting addition of the given binomials is 
Hence, option C is the correct answer.
3 for 3.60 the unit price come out to 1.20
Answer:-12+10
Step-by-step explanation:10-12 can also be written as -12+10 which will give you -2