Ineed with 3 math questions, ! 15 points!

The figure above shows the lengths of thesides of a rectangle in cm. find the valuesof x and y and then the area of the rectangle.sides: top= 3x - yleft= 3y + 4bottom= 2x + yright= 2x - 3 use both methods, elimination and substitution, if possible.

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Which statements about these triangles is true