```ruby
# Calculate a Grade

# I worked on this challenge [by myself, with: ].


# Your Solution Below```

Add solution for calulate grade
user
```ruby
# Calculate a Grade

# I worked on this challenge with: Joe Plonsker.


# Your Solution Below

def get_grade(average)
  if average >= 90
    return "A"
  elsif average >= 80
    return "B"
  elsif average >= 70
    return "C"
  elsif average >= 60
    return "D"
  else
    return "F"
  end
end```
assistant