Doughnuts are sold in bags and cartons. A bag holds 4 doughnuts and 10 doughnuts. Tom buys B bags of doughnuts and C cartons of doughnuts. He buys a total of T doughnuts. Write down a formula for T in terms of B and C.

What is the measure of angle x? answer

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables