Which type of study best describes the following research most likely to be done?

a teacher wants to know how fast all her students for a particular period can complete a multiplication quiz to check their mental math abilities. so, all of her students are tested on a computer and the time of each and every student is recorded.

group of answer choices

experimental study

observational study

simulation study

census

sampling

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below. the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

The function models the number of accidents per 50 million miles driven as a function