Which of the following statements about lump-sum taxes is correct a. a lump-sum tax means that tax revenues vary directly with gdp. b. a lump-sum tax means that tax revenues vary inversely c. a lump-sum taxes means that the tax applies to only one time period. d. a lump- sum tax means that the same amount of tax revenue is collected at each level of gdp.

The following information is for alex corp: product x: revenue $12.00 variable cost $4.50 product y: revenue $44.50 variable cost $9.50 total fixed costs $75,000 what is the breakeven point assuming the sales mix consists of two units of product x and one unit of product y?

Describe three scenarios in which you might utilize mathematics to investigate a crime scene, accident scene, or to make decisions involving police practice. be sure to explain how math is used in police as they work through each scenario.

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.