The graph of which of the following will be perpendicular to the graph of y= 2x - 4
a) 2x + y = 4
b) 4x - 2y = 4
c) y= -2x + 8
d) 2x + 4y = 1

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

How many grams the dog will eat in 3 days?