Boys:girls = 4/5
boys = 4/(4+5) = 4/9 of the class
Since it is perpendicular to y=3x-1, the slope must be a negative reciprocal.
there the slope of the perpendicular line is

So now we have,

To find b, we use the point that the line passes through and substitute it to the y and x values.

which would give us b=5/3
Therefore, the equation of the line is
Y=8
your teacher is introducing algebra
Answer: the distance is 10
Step-by-step explanation: its 10 cause like if you draw a number line and label it and then go backwards till you get to -1 it will be 10
The answer is C 16:20 because both numbers 4&5 are multiplied by four