David can you 25/6 meters per hour manually, but using a digging machine he can dig 3 times as fast. How many meters would David be able to dig with the machine in an hour?

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

Find two numbers if their sum is 91 and the ratio is 6: 7?

The product of sin 30 degrees and sin 60 degrees is same as the product of