Write an expression for 1 more than a

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Aquadrilateral has exactly 3 congruent sides davis claims that the figure must be a rectangle why is his claim incorrect.