Acar travels 300 miles on level terrain in the same amount of time it travels 175 miles on mountainous terrain. if the rate of the car is 25 miles per hour less in the mountains than on level ground, find its rate in the mountains.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

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?