Answer:
Step-by-step explanation:
hello :
circunferencia P=π×d d: el diámetro
d= P/π
d=28.26/3.14 = 9 U
7x + (2x+27)=180-> 9x= 180-27 -> x=17
51
102 divided by 2 is 51
y=3/4x+2 is the answer