What is the area of the real backyard?

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

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”?

Write the function for the graph. (1.8) (0,4)