Which of the following statements are not true regarding functions?
(more than one answer work)

a. the horizontal line test may be used to determine whether a function is one-to-one.
b. the vertical line test may be used to determine whether a function is one-to-one.
c. a function is a relation in which each value of the input variable is paired with at least one value of the output variable.
d. a sequence is a function whose domain is the set of natural numbers.

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?

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?