Keiko's coffee shop makes a blend that is a mixture of two types of coffee.
type a coffee costs keiko $4.10 per pound, and
type b coffee costs $5.35 per pound. this month, keiko made 173 pounds of the blend, for a total cost of $824.30.
how many pounds of type b coffee did she use?

The defendant is charged with the battery of a bouncer at a local tavern. at the trial, the prosecutor introduces evidence that while the bouncer was attempting to question the defendant about her intoxicated demeanor, the defendant committed a battery on the bouncer. the defendant attempts to defend against the charge on the basis of self-defense, insisting that the bouncer used excessive force in stopping her from entering the tavern. the defendant attempts to introduce into evidence an authenticated copy of the tavern records that show that three patrons had written complaints against the bouncer within the past six months for the use of excessive force. the prosecutor objects on the grounds that the records are inadmissible character evidence. should the court sustain the objection?