Cate and elena were playing a card game. the stack of cards in the middle of 24 cards in it to begin with. cate added 8 cards to the stack. elena then took 12 cards from the stack. finally care took 9 cards from the stack. how many cards were left in the stack.

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?

1/4x+5=3/4. i can't get access to the answer to this question! and, my request on "contact us" will not go