A coworker just sent you a presentation to review. You noticed that she used different types of transitions on the same slide, and the animations and videos were distracting from the topic. Give your coworker advice about guidelines she can follow when using animation, transitions, and multimedia. Be sure to include at least four guidelines

7. test average and grade write a program that asks the user to enter five test scores. the program should display a letter grade for each score and the average test score. write the following methods in the program: calcaverage: this method should accept five test scores as arguments and return the average of the scores. determinegrade: this method should accept a test score as an argument and return a letter grade for the score, based on the following grading scale: score letter grade 90-100 a 80-89 b 70-79 c 60-69 d below 60 f