The correct answer will be the first one
Because The sum of the interior angles of a triangle is 180 degrees. And on the picture if you do 50 +40 =90 and mines 180 would be 90
Answer:
50
Step-by-step explanation:
p(1)=15x+25
p(1)=15(1)+25
p(1)=15+25
p(1)=50