3. Molly bought four rose bushes for $16.40 each. Use mental math to find the total cost of the bushes.
Justify your answer by using the Distributive Property.

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

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.

How do you use the elimination method for this question? explain, because i really want to understand!