Angela invested $4000 in an account that earns 5% interest yearly (simple interest). She forgets about it for 12 years. What is the TOTAL amount of money in the account after those 12 years?

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.

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

I'm confused on this could anyone me and show me what i need to do to solve it.