Your answer is 9! Please ask questions if you need me to go into further detail. Have a good day! :)
Answer:
C
Step-by-step explanation:
pi is irrational but it is a real number
Check the picture below.
∡a has a vertical angle sibling of 40°, and vertical angles are always congruent.
∡b is the 3rd angle in a triangle, the other two are 40° and 90°, recall all interior angles in a triangle add up to 180°.
∡c is a linear angle, namely an angle on the same flat-line as another, and linear angles always add up to 180°.
Answer:
x=7
Step-by-step explanation:
25x+5=180
-5 -5
25x=175
/25 /25