Answer:
It took Betty 1 hour 24 minutes to bake 1 cake.
Step-by-step explanation:
1) Convert to minutes. 4 hours 12 minutes = 252 minutes
2) Divide by 3 (number of cakes). 252 minutes divided by 3 is equivalent to 1 hour 24 minutes or 84 minutes.
5^5=5*5*5*5*5=25*25*5=625*5=3125
Divide 360 by the number of sides or angles that the polygon has
Answer: 
Step-by-step explanation: In some cases you must apply the exponent rule, simplify, or multiply them together to get your answer.