The perimeter of a square is 80-60y units. which expression can be used to show the side length of one side of the square?

Assemble the proof by dragging tiles to the statements and reasons column

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

X+ y = 5 ; x - y =3 solve using linear combination