A mptprbpat travels downstream on a river for five hours. The speed of the current is 2km/h. The river flows into a still lake and the motoboat continues for two more hours. The distance covered by the boat on the river was 40km more than the distance it covered on the lake. Whatis the speed of the motorboat in still water?

Find an equation of the line perpendicular to the graph.

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

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.