There are 18 students enrolled in mr. baker's class. today 3 of them are absent. what is the ratio of the number of students present in class today to the total number enrolled?

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

Then just do it (lol)