A baker uses chocolate with 75% cocoa for his famous cake. But the supplier delivered 100 lb of chocolate with 70% cocoa. The baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use.

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

Which of the greatest common gcf of 32 and 48 a 16 b 96 c 8 d 32

Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4