Augustus can make 3 milkshakes per hour while Luna can make 7 milkshakes per hour. If Augustus and Luna have been making milkshakes for 8 hours now, how many milkshakes have they made?
Augustus and Luna can make a total of 3 + 7 = <<3+7=10>>10 milkshakes per hour.
Therefore, they made a total of 10 x 8 = <<10*8=80>>80 milkshakes in 8 hours.
#### 80