Manuela rented an apartment and later discov-
ered that the roof leaked. She asked the landlord
to make repairs, but he refused. Manuela said
that she would move out unless the landlord
either made the repairs or lowered the rent. The
landlord lowered the rent. Does Manuela's con-
duct make the modification to the contract void-
able due to duress?

Pam is a low-risk careful driver and fran is a high-risk aggressive driver. to reveal their driver types, an auto-insurance company a. refuses to insure high-risk drivers b. charges a higher premium to owners of newer cars than to owners of older cars c. offers policies that enable drivers to reveal their private information d. uses a pooling equilibrium e. requires drivers to categorize themselves as high-risk or low-risk on the application form