If bc = 6 and ad = 5, find dc. 4 4.5 7.2

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!