Answer:
Its not a function, D
Step-by-step explanation:
its not a function because the x value, 1, repeats. input is x and output is y, so the input of 1 has more than one output.
-25 x 105=-2625+18=-2607
-3 x-6=18
answer=-2607
Let, the number of student = x
Fraction of boys = 1 - 2/5 = 3/5
So, it would be: x * 3/5 = 1482
x = 1482*5 / 3
x = 7410/3
x = 2470
Thus, There are total 2470 students
Hope this helps!