James has a job with a current salary of $42,000. he wants to earn a college degree that will take him 2 years to complete and it will cost $28,000 per year. he will go to school full time and will not be able to work. upon graduation, james' new salary will be $56,000 per year. how many years will it take james to recover his investment?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

With both problems. a.s.a.p directions on photo ^

52 cm radius = diameter = area = circumference = circumfer