the smell of pizza in a kitchen diffuses outward in concentric circles. If after t minutes the radius of the smell is 5t meters, what is the radius of the change of the area of the smell when the smell reaches joe, who is ten meters away

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places