Sarah wants to buy a TV and a VCR. The store she visits has 7 different kinds of TVs and 4 different kinds of VCRs. How many possible combinations of a TV and a VCR does Sarah have to choose from? a.4
b.7
c.11
d.28

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.

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Which is the focus of a parabola with equation y2=4x