Interest rates have dropped steadily over the last six months. each month they have decreased by 1/4 point.
a. write an expression to represent the total change of rates over the last six months.
b. find the total change. make sure to express your answer as a mixed number in lowest terms.

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?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?