Elian and his friends paid a total of $7 for tickets to the school football game. while at the game they bought 5 hot dogs at x dollars each 5 boxes of popcorn at y each and 2 pretzels at z dollars each. if hot dogs cost $4 popcorn cost $3 and his pretzels cost $2 what was the total cost of admission and snacks for elian and his friends?

Given: abcd is a square. prove: ac ? bd. we are given that abcd is a square. if we consider triangle aeb and triangle aed, we see that side is congruent to side ad because sides of a square are congruent. we know that side ae is congruent to side ae by using the . finally, we know that side de is congruent to side because the diagonals of a square bisect each other. therefore, triangle aeb is congruent to triangle aed by congruency. we see that angle aed and angle aeb are a linear pair, and congruent by cpctc. thus, the measure of these angles will be 90°, and diagonal ac is perpendicular to diagonal bd by the .