What is the slope of a line perpendicular to a line with equation 6x-4y=30

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Which of the choices shown could be used to prove that aacp=abcp ?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.