How do you convert a ratio from area to length?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Can someone me with the property questions for 12 13 and 14 plz

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000