Daniels rate of painting the mural was2/3 of a square foot per hour. bree's rate of painting the mural was 1/3 of a square inch per minute. who painted more quickly

Find the value of the variable and the length of each secant segment

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

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”?