SOLUTION: Evaluate 4t when t=15 and when t= -6.8. Show steps

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Question 638298: Evaluate 4t when t=15 and when t= -6.8. Show steps
Answer by MathLover1(20850) About Me  (Show Source):
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4t when t=15
4t=4%2A15=60

and when t=+-6.8
4t=4%2A%28-6.8%29=-27.2