Need help with this question cant figure it out

a) 12 degrees

b) 15 degrees

c) 140 degrees

d) 22 degrees

Step-by-step explanation:

Step 1 :

a)

The angles in a straight line sup to 180 degrees

So we have

10 x - 20 + 6 x + 8 = 180

16 x - 12 = 180 => 16 x = 192 =>  x = 192/16 = 12

Hence the value of x is 12

Step 2 :

b)

Given angles 1 and 2 are complementary which implies that their sum is 90 degrees

so we have, x + 3 x + 30 = 90

=> 4x + 30 = 90 => 4x = 60 => x = 15

Hence x has a value of 15 degrees

Step 3 :

c)

Given that the sum of the angles inside the figure is 720 degrees.

So we have,

x - 60 + x - 40 + x - 20 + 130 + 120 + 110 = 720

3x +240 = 720 +> x = 160

measure of angle F is x -  20 = 160 - 20 = 140 degrees

Step 4 :

d)

We know that the triangles 3 angles  sum is 180 degrees.

So we have,

x + 120 + x +  160 = 180 => 2x = 44 => x =22

So angle B measures 22 degrees

the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.

because they could drop even lower..