A chemist begins studying a radioactive sample that has a mass of 450 grams.
sample decays at a rate of 6.7% each week. How much of the sample is left in
weeks? Round your answer to 2 decimal places.
A)287.74
B)301.19
C)332.06
D)318.14

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

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.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76