Which statement correctly describes the relation between the variables in the equation c=\pi d
a. c varies directly as d
b. c varies inversely as d
c. c varies jointly as d
d. c varies directly as c=\pi

What is 20+(5 x 2/5 )+ 3 show your work

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?