Abner tells a representative of Brass & Woodwind Musical Instruments, Inc., that he will pay for Claudia’s trumpet if she does not. Abner does not secure any personal benefit for this promise. This promise is enforceable as a contract

a. under any circumstances.
b. only if it is in writing.
c. only if the value of the trumpet is more than $500.
d. only if Claudia agrees to it.

Arestaurant that creates a new type of sandwich is using (blank) as a method of competition.

Gary lives in an area that receives high rainfall and thunderstorms throughout the year. which device would be useful to him to maintain his computer?

True of false: the chancellor of a university has commissioned a team to collect data on students' gpas and the amount of time they spend bar hopping every week (measured in minutes). he wants to know if imposing much tougher regulations on all campus bars to make it more difficult for students to spend time in any campus bar will have a significant impact on general students' gpas. his team should use a t test on the slope of the population regression.