exam Maths Puzzle Numerical Ability

Solve the system of equation using the addition elimination method if the answer is a unique solution, present it as an ordered pair (x,y). if not specify whethere the answer is no solution or infinitely many solutions.

9x+2y =2
3x+5y =5

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exam Other Question

70) Cost of Material. A rectangular box with volume 320ft cubed is built with a square base and top. The cost is $1.50/ft.squared for the bottom, $2.50/ft.squared for the sides, and $1/ft.squared for the top. Let x=the length of the base, in feet. I need help with this proof.
Given: triangle WOZ is congruent to triangle WOY
Prove: XY is congruent to XZ