Prove .

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?