A set of cloth napkins was originally priced at $4.99, but Zack waited to buy it until it was 45% off. If he paid 15% sales tax on the sale price, how much did he pay in total?

Kilgore trout creates a new scale to diagnose depression. however, his scale only assesses one symptom of depression while ignoring others. which of the following is his new scale most likely lacking? a) test-retest reliability b) discriminant validity c) criterion validity d) alternate-forms reliability e) content validity f) none of the above