I hope this helps you
Claudia x
father 7x
20 years later
x+20= 1/2 (7x+20)
2 (x+20)=7x+20
2x+40=7x+20
5x=20
x= 8
father 7.8=56
Point slope is y-y1= m(x-x1) where m is slope
Plug the values in:
y-(-8)=3(x-8)
Simplify:
y+8=3(x-8)
The equation to find the circumference of a circle is ...
c = π × d
All we need to do to find circumference is to <em><u>multiply</u></em> the diameter (16km) by pi (π)
c = π × 16
c = 50.27