Graphing pint slope form and killing zombies

I don't know how to graph it.

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1