Select the equation that represents the graph of the line. A
y=x−1
B
y=12x−1
C
y=12x+2
D
y=x+2

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Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.