In the equation 
, a is the initial amount and b is the growth factor. So our initial amount is 30 and our growth factor is 8.3. Your correct choice for this is A.
Fastest to slowest: 12.5 mph , 12 1/4 mph, 12.2 mph
2 answers:
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Answer:
It takes 70 minutes for 9 team members (painting 60 sq ft per minute) to paint a 4200 sq ft wall.
Step-by-step explanation:
According to the situation the calculation is shown below:-
=
= 240 sq ft each member of the team in 36 minutes
=
= 6.67 sq ft each member of the team within 1 minute
= 60 sq ft for every 9 team members in one minute
=
= 70 minutes (or 1 hour and 10 minutes)
Hence, the 70 minutes is taken for 9 team members