HEYY SOMEONE DO THESE FOR ME IM CRYING AND STRUGGLING SO BAD. ILL GIVE BRAINLIEST

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

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?