What is the exact area of a circle whose diameter is 14 cm?
a.
14 straight pi cm2
b.
28 straight pi cm2
c.
49 straight pi cm2
d.
196 straight pi cm2

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.