Answer:
90 degrees
Step-by-step explanation:
It is a right angle
no because 2+2=4
p=-1/2
4(4p+6)=16
4p+6=4
4p=4-6
4p=-2
P=-2/4
13.5
2/3=9/x
2x=9*3
2x=27
x=27÷2
x=13.5