Answer:
Question 13. I believe is C.
Step-by-step explanation:
take your area of the face you are given aka your 7 5/6 and multiply it by six since there are six faces.
You can convert the mixed number to an improper fraction
= denominator times the whole number ( 6x7)= then add the numerator (42+5)=
Then multiply by six to get your answer
I'm not completely sure about question number fourteen so I am not answering it.
Answer:
C=30
Step-by-step explanation:
Supposing that we have the lines
x+2=10y
and
3x+6=Yc.
Note that dividing by 3 the second line can be rewritten as
x + 2= Y c/3.
Remember that a line is written as 
, in our case, both lines have 
and 
. Therefore, in orther that the two lines are equal, we need that 
, hence 
45degrees because angles can not be negative
y=23x+143 hope this helps
