Major
an earthquake registered 7.4 on the richter scale. if the reference intensity of this quake was 2.0 × 10^11, what was its intensity?

Question and answers are in the attached picture. you so much in advance.

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 are sas and sss used to show that two triangles are congruent?