3.9 x10^-4 + 2.22 x 10^ -2

Ihonestly have no clue if it's each or none.

Select the correct answer and solve for y

Hilary decided to purchase 3 points in order to lower her interest rate on her $140,000 mortgage. how much additional money does she need to bring to closing? a. $4200 b. $4000 c. $6 d. $400