PLEASE HELP ME! Justin has 50 pictures in an album. Of these pictures, 30 show his friends, 12 show his family,
and 8 show only Justin. Justin is in 1/2 of the pictures that show his friends and 1/2 of the pictures that show his family.
Based on this information, which statement is true?
A)The probability of randomly selecting a picture that shows Justin with his friends is greater
than the probability of randomly selecting a picture that shows Justin with his family.
B)The probability of randomly selecting a picture that shows Justin is 8%.
C)The probability of randomly selecting a picture that shows Justin with his family is 5 times
the probability of randomly selecting a picture that shows only his friends.
D)The probability of randomly selecting a picture that does not show Justin is 21%.
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Answer is in the photo. I can only upload it to a file hosting service. link below! Good Luck!

https://cutt.ly/wzdvC7R

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

765238725478629038640962136509762139056074

step-by-step explanation:

64087235609746097215074621039754021037