Step-by-step explanation:
From kindergarten to sixth grade is seven grades and if for each grade 57 new students get enrolled then 57*7=399 there are 399 students
Y=ax+b
a... slope
b... interception on the line y
you get the equation y=-1/2 *x + 12
The value of x is 1/5
Step-by-step explanation:
In a probability distribution, probability should be between 0 and 1. The probabilities add up to one.
Given probabilities are:

The sum of these probabilities will be equal to 1.
So,
To find x,

The value of x is 1/5
Keywords: Probability, Distribution
Learn more about probability at:
#LearnwithBrainly
Ling JM is also 23 centimeters because line LJ and JM are a line but broken into two segments