7) As a result of sky-high gas prices, the cost of delivery pizza is expected to experience a constant 8% annual rate of inflation. In today' s dollars, Obese Oliver spends $2,000 per year on delivery pizza. His delivery pizza-eating habits will not change over the next ten years, so he will pay whatever price increases are necessary to sustain this level of consumption . If the nominal interest rate (note that " nominal" refers to both interest convertibility and its relationship to inflation), convertible semiannually, is 10%, find the present value of Oliver's delivery pizza purchases for the next ten years.

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.