PLZ HELP 500 POINTS AND BRAINIEST
PLZ SHOW WORK

Miguel's mother builds and sells houses. She wants to buy a piece of land on which to build several houses. There are two lots for sale. One is a rectangular plot that is 3/8 of a mile by 2/3 of a mile. The other square plot that is 2/5 of a mile.


Part A
Which lot should Miguel's mother buy if she wants the biggest lot?

Part B
If the land in the area sells for 750,000 a square mile, how much should she expect to pay?