Ineed with an ap calc questionn

the side of a square is measured to be 16 ft with a possible error of ±0.1 ft. use linear approximation or differentials to estimate the error in the calculated area. include units in your answer.

Gretta needs a $300,000 mortgage and is offered two choices. the monthly payments for the fixed rate and predicted payments for the arm are shown. adjustable rate mortgage year monthly payment 1-15 $1,610.46 adjustable rate mortgage year monthly payment 1-5 $1,520.06 6-15 $1,728.54 what is the difference between the total costs of the mortgages rounded to the nearest hundred? $8,700 $1,700 $15,800 $5,000