Please help I’m failing

What is the negation of the following statement?
m∠A is greater than 90.

A: m∠A is not less than 90.

B: m∠A is less than or equal to 90.

Which of the following best describes the delian problem?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

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?