Answer: 9
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
Keeping on mind that:
(-)(-)=+
(+)(+)=+
(-)(+)=-
You can distribute the signs as following:

Now, you can add all the numbers shown above. Therefore, you obtain the following sum:

Answer:
7 lol
Step-by-step explanation:
self explanatory-
but you divide 1 by 7 you get 7
The answer to number 16 is 0,15
Answer:
(C) 102 degrees
Step-by-step explanation:
All angles in a triangle must add up to 180 degrees. If you know 2 angles, you must know the last one by subtracting the other two from 180. If you subtract 50 and 28, the two known angles in this situation, from 180, you get 102. Therefor, the last angle must be 102 degrees, or choice C.
The midline is halfway between the extremes of -1 and +5, so is
.. y = (-1+5)/2
.. y = 2