Answer:
The fourth choice.
Step-by-step explanation:
Because since 90 miles is basically counted as your first day, you do the number of days, n, minus 1 and then multiply it by 5 to find the number of miles walked after the first day. Then you add it to 90.
Answer:
NO.
Step-by-step explanation:
No because 13 > 4 + 5.
Answer:
2,800 Books to be the same.
Answer:140
Step-by-step explanation:
6^9 x 6^-7 = 6^2
x= -7
Hope this helps :)