80 x 40 is 320. I know 80 x 40 is 320 because 80 + 80 + 80 + 80 is 320. I also know 80 x 40 is 320 because 8 x 4 is 36. If you pretend the 0 is not there it’s 8 x 4. I know you can get the answer quicker that way because it’s just times tables.
42 because--------------------------------------------------------------................................
Answer:
50 miles per hour
Step-by-step explanation]
300/6=50/1
