Simplify the expression. 6k – 1 + 6k

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?

Given right triangle abc, what is the value of tan(a)?