What is the value of x?
x/6 = 20/24
2
4
5
7

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”?

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?

20 ! brainliest ! add and simplify your answer.