Which statement is true about f(x) = -6|x + 51| – 2?
the graph of f(x) is a horizontal compression of the graph of the parent function.
the graph of f(x) is a horizontal stretch of the graph of the parent function.
the graph of f(x) opens upward.
the graph of f(x) opens to the right.

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

Three times the sum of a number and seven is negative thirty-six. what is the number?

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?