Num supermercado, 200g de queijo e 300g de presunto custam juntos R$ 9,00. Renan resolveu comprar 400g de queijo e 400g de presunto e pagou R$ 14,00. Qual o preço, em reais, do quilograma do presunto?
(A) 1,50 (B) 2,00 (C) 14,00 (D) 15,00 (E) 20,00

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.