The ratio of the corresponding side lengths of two similar computer screens is 13:15. The perimeter of the smaller screen is 39in. what is the perimeter of the large screen

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)