Step-by-step explanation:

So sqrt(40) lies between 6 and 7.
Answer:
X = 5.9 (in degree mode)
Step-by-step explanation:
Do the following:
12(tan26) = X
Plugging this into a calculator, you will get:
X = 5.9 (in degree mode)
D (-4 , -1)
relflected over x-axis= (4 , 1)
180 degrees= (-4 , -1)
It depends on the question, but if the question is, how many is there....
It usually means to <u><em>add</em></u>
(What is the question anyway?)
1,3,5
4 looks like true but decreasing but 2 dollars also gives max revenue, so I not sure about it