Answer:
5+4+7
Step-by-step explanation:
I think
20,000÷50=

The plane needs to descend at 400 ft per mile.
At 40 degrees?
It will come out to a flat number like 10 20 30 40 ect and the counterfeit will have a 1 at the end such as 11 21 31 41.
Hope i Helped
Page from ready workbook, it’s about rational numbers