Which is a solution to the linear function 5x – 2y = 12?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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?