Your decision. 5. Hannah examined these multiples of 9: 18, 45, 63, 27, 81, 108, 216.
She claimed that the sum of the digits in any multiple of 9 will add
to 9. Do you agree or disagree? Justify your decision.

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

15/16 as a decimal rounded to the nearest hundredth

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”?