Ms. Sandy Bought A Package Of Pencils. Out Of Every 10 Pencils​, 8 Are Black. If There Are 30 Pencils In The​ Pack, What Fraction Of The Pencils In The Pack Are​ Black? What Percent Of The Pencils In The Pack Are​ Black? What Fraction of The Pencils In The pack Is​ Black?

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?