Find the values of x and y that make these triangles congruent by the hl theorem 2x-1 y-1

Ashopper bought a watermelon a pack of napkins and some paper plates in his state there was no tax on food the tax rate on non-food items is 5% the total for the three items he bought was 825 before tags and he paid $0.19 in taxes how much did the watermelon cost

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Which one ? is the answer and how to find this answer