Find an explicit formula for the geometric sequence 1/2, -4, 32, -256

Which term best describes the association between variables a and b

Which table represents a linear function? i'll give brainliest to first answer ^'^

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?