0.6(6.5x10^5) write the answer in scientific notation

Which of the following is the formula for the sequence graphed below

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)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)