Use de moivre's theorem to write the complex number in trigonometric form. (1-i sqrt 3)^3

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Ten times the square of a non-zero number is eqaul to ninety times the number