The following sentence has a mistake.
it is very important to proofread all documents carfully.
to fix this mistake, you should _
place the cursor before the word "important". press delete, and type a capital "1"
place the cursor after the "r" in carfully and type an "e"
place the cursor after the word "carfully" press backspace five times and type an "e"
put the cursor after the word "important" and add a comma

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