The graph of the following systems of equations is . 5x +y = 3
10x + 2y = 8
A) intersecting lines
B) parallel lines
C) coinciding lines

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Standard deviation of 19,29,21,22,23