PLEASE HELP Find the perimeter of a rectangle whose width is 3 cm and whose diagonal is 3√5 cm long.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b. you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c. you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d. you spend $5 plus $10 per week until you have less than $45.

What is negative 3/9 times negative 2/8 ?