What is the surface area of the prism? Measurements are the length is 6cm the width is 4cm and the height is 9cm Type number and unit (the unit can be in words).

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

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”?