Answer: one hundred eleven thousandths
Step-by-step explanation:
Substitute a number for each variable
Ex.
2x x=5
(2)(5)
=10
$104 because 30% of $80 is $24 and $80+$24 is $124 so...... that's what I got
Let sum of 3 numbers be x.
Average of 3 numbers and 8 =

25 =

100 = x +8
x= 92.
The sum of 3 numbers is 92.