You have two jobs. babysitting pays $5. per hour. mowing pays $6.00 per hour. you can work no more no more than 20 hours each week, but you need to earn at least $90 per week. what are the variable

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

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?