Plz help I really need it 15 points

x=65

Step-by-step explanation:

First, we need to find the 2 base angles of the triangle

105 is adjacent to another angle, and they are on a straight line. Therefore they are supplementary and add to 180 degrees

105+z=180

Subtract 105 from both sides

z=75

140 is adjacent to another angle, and they are on a straight line. Therefore they are supplementary and add to 180 degrees

140+y=180

Subtract 140 from both sides

y=40

Now, we know the two base angles of the triangle are 40 and 75. The angles in a triangle add to 180 degrees, so

40+75+x=180

Combine like terms by adding 40 and 75

115+x=180

Subtract 115 from both sides

x=65

positive

step-by-step explanation:

the quadrant is facing upwards

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3