You contributed $4,000 (1st year), $3,500 (2nd year), $1,500 ( 3rd year), and $2,000 (4th year) into your retirement fund for each of the past 4 years. Your goal is to save at least $75,000. You have eleven years of work left before you retire. What is the average annual contribution you will need to make to reach your goal of $75,000?

A25-inch wide drum is used in a marching band. what area does the top of the drum cover? round to the nearest hundredth. (use 3.14 for pi.)

Polynomial that can be factored as (3x-4)(3x+4)

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.