Answer:
3(7a - 9)
Step-by-step explanation:
21a–27
3*7*a - 3*9
Factor out 3
3(7a - 9)
After 1 hour he has driven 40 miles
Answer:
hope this helps (look in the picture)
Step-by-step explanation:
Answer:
100 if rounded to hundreds
140 if rounded to tens
Step-by-step explanation: