X-y=9

2x+5y=4

solve by subsitution

show work

Suppose you start at the origin, move along the x-axis a distance of 9 units in the positive direction, and then move downward along the z-axis a distance of 8 units. What are the coordinates of your position?

If a lawaway plan required a 20% deposit, how much would the deposit be for a $58.90 dress?

Find a value for m and n to make a true statement. a) mx^2 - 36 = (3x + 6) (3x - 6) b) (mx + ny) ^2 = 4x^2 + 12xy + 9y^2

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Simply and reduce to lowest terms a + [a + b - a - (2a - b) ]