Herman and helga had a combined gross income of $391,200 in 2009. when filing their federal income tax return with the married filing jointly filing status, they took the standard deduction of $11,400, claimed themselves as exemptions for $3650 each, and did not have any other adjustments to income. according to the following table, which income tax bracket did they fall into?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Collin did the work to see if 10 is a solution to the equation r/4=2.4

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