Answer:
t=312 minutes or t=5.2hrs
Step-by-step explanation:
I.Given that Stephanie has 6 classes a day of 52 minutes each.
-To get the duration spent in class each day, we multiply the total number of classes per day by the duration per class:

Stephanie spends 312 minutes per day in class
II. Get the duration in Hours:
#We multiply the class duration by number of class then divide by 60 minutes to get total duration in hours:

Stephanie spends 5.2hrs per day in class
Answer:
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Move the decimal over 5 times when it's a positive interval notation:
200,000
660,000
Hey!
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Product means multiplication.
-2/7 * -3/6 = -6/42 = -1/7
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Hence, the answer is 
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Hope This Helped! Good Luck!
Answer:
Im pretty sure the answer is
C) r^2 - 49
Step-by-step explanation: