5/11 of students at school are girls if there are 1551 students in school how many are boys

If 5/11 are girls, then 6/11 are boys (the total has to be 11/11, which equals 1).

Multiply the fraction of boys by the total number of students.

(6/11)*1551 = 846

Therefore, 846 of the students in the school are boys.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.