If triangle abc is isosceles, and ab = 6 and bc = 4, then ac =
a) 4
b) 6
c) 4 or 6
the answer is c, but edgenuity doesn't say why.

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6