Gabriela is building a brick wall. each row of bricks is 6.5 cm tall except that the top row is 1 cm shorter because it has no mortar. she wants the wall to be 259 cm tall. which equation can we use to determine r, the number of rows of bricks gabriela needs in her wall?

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.