Numa olimpíada de matemática, 9/14 dos alunos obtiveram notas maiores que 6,0. se 300 alunos obtiveram notas maiores que 6,0, quantos alunos participaram dessa olimpíada? pelo amor di deus eu preciso de ajud

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet