Answer:
d=13988 or d=1.3988 x 10^4
Step-by-step explanation:
d=(-8)^2+(-118)^2
d=64+13924
d=13988
<em>Exact Form: </em>
<em>Decimal Form: </em>
1.875
<em>Mixed Number Form: </em>
40 students
We do not count the counselors or the principal because they are not students, so we do 83 - 3 = 80, now it is just simple division, for every student there is a parent, so we divide 80 in half, 80 / 2 = 40 students :D
