In English, aspirated [tʰ] appears at the start of a word (top), but unaspirated [t] appears after an [s] (stop). You will never find [tʰ] after an [s]. This “mutually exclusive” relationship is called:

When pronouncing the word petition, English speakers often delete the first unstressed [ə], resulting in [pˈtɪʃn̩]. Which rule captures this vowel deletion between a word-initial [p] and a [t]?

If a student is writing a phonological rule that says “vowels become nasalized before a nasal consonant,” which notation is correct?

In Chickasaw, a stressed vowel in an “open” syllable (one ending in a vowel) is lengthened, but a stressed vowel in a “closed” syllable (one ending in a consonant) is not. This proves that:

A new marketplace app cannot attract enough buyers because few sellers have joined, and sellers do not want to join because there are too few buyers. Which of the following best identifies this problem and a reasonable way to resolve it?

A company uses one system to manage inventory, purchasing, accounting, and production across departments. It uses another system to track customer interactions, sales leads, and service requests. Which statement is correct?  

A ride-sharing platform becomes more valuable as more riders join because drivers can find more customers, and as more drivers join because riders can get faster service. This growth then attracts even more users on both sides. Which option best describes this pattern?

In a company network, Alex has many direct connections within one team, while Jordan has fewer direct connections but connects several otherwise separate teams. Which statement is most accurate?

A nurse is caring for a client who had bipolar disorder. The client states, “I am very rich, and I feel I must give my money to you.” Which of the following responses should the nurse make?

A nurse on an inpatient unit is creating an educational presentation on bipolar disorder. Which of the following should the nurse plan to include in the presentation?