Arectangle has all integer length. when 3 units are added to the height and 2 units to the width, the area of the rectangle is tripled. what is the sum of the original areas of all such rectangles

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

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”?

Can you me find the slope! (30 points)