My father is 32 years old and his mother is twice as old. how old is my grandmother? answer

Multiplying an even number of negative numbers gives an answer that is choose from:

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

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”?