A scale drawing of a movie screen is 21 inches long and 9 inches tall. The actual screen is 30 feet tall. A. What is the scale of the drawing?
B. Find the perimeter and area of the movie screen in the scale drawing.
C. Find the actual perimeter and area of the movie screen.
PLEASE HELP SOON!! ​

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Were only 64 seats. the remaining 6 students had to travel in a separate van. the equation 2b + 6 = 70 represents the given scenario. what does b represent? the number of buses the number of vans the number of students who rode on each bus the total number of students going to the football game

The perimeter of the rectangle is 120 feet. if the length of the rectangle is ten feet more than the width ,what are the dimensions (length and width) of the rectangle?