April is the manager of a local restaurant and she is telling John, a waiter the day's lunch specials. The communication exchange is best described as

When a toothpaste ad shows an ordinary, middle-aged male using a particular brand and claiming it is the best, the ad agency is using

A. lay testimony. B. expert testimony. C. celebrity testimony. D. legal testimony.

The hypotenuse of a right triangle measures 9 and one leg measures 4. Find the measure of the remaining side. Give your answer as a decimal rounded to the nearest tenth.

What will be an ideal response?