Jessica can swim a lap and 29 and 2/5 second marta can swim a lap in 28.7 seconds how much faster can marta swim lap and then jessica

() at a farm, animals are fed bales of hay and buckets of gain.each bale of hay is in the shape of a rectangular prism.the base side lengths 2 feet and 3 feet,and the height is 5 feet. each bucket of grain is a cylinder with diameter of 3 feet. the height of the bucket is 5 feet as the height of bale. a. which is larger in area, the rectangular base of the bale or the circular base of the bucket? explain how you know b. which is larger in volume, the bale or the bucket? explain how you know

Standard deviation of 19,29,21,22,23

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?