Point B lies on AC between points A and C. If...
AB = 2x + 4, BC = 20, and
AC = 5x + 15,
find x.

Aline that intersects one of two parallel lines intersects the other also always sometimes never

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”?

Of of at a : $6, $8, $7, $6, $5, $7, $5, $7, $6, $28, $30 is?ato .ato .ato .ato .