Twilio Software Developer interview questions

Given some phone numbers and some words determine if you can represent those words with the numbers using the normal phone number to letter translation

Given two arrays of strings, one containing the prefixes (area code) and one with a long string of numbers (phone numbers), return the longest prefix corresponding to all phone numbers. Input is a string of characters that represents a text message. You need to segment this message into chunks of messages each of length 160 characters and add suffix "(1/5)" (representing pagination) at the end of each segmented message (Length of "(1/5)" is included in 160 length limit).