The answer should be
4.
First, simplify

to 4. Your problem should look like: 4 x 1.
Second, multiply. 4 x 1 = 4 so that is your answer.
Also, to start the equation up, make sure to add in the numbers in replace for the letters. Your problem to start with should look like:

.
Answer:
I think it's the first one... but I'm not pretty sure.
Answer: 3 + a + 10b
Step-by-step explanation: combine like terms
I would think the slope is 0 because it's a horizontal line
Answer:
14
Step-by-step explanation:
we can use sin(30⁰) to solve this and the units will be 14