I believe this is correct
Last Week's Earning = 96 x $3 = $288
This Week's Earning = 204 x $3 = $612
Difference = $612 - $288 = $324
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Answer: He makes $324 more this week than last week.
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The formula for the period T of a pendulum is T = 2π Square root of√L/g, where L is the length of the pendulum and g is the acceleration due to gravity.
Answer : D

The denominators are same
So we combine the numerators

To remove parenthesis we distribute negative sign inside the second parenthesis



Morgan made a mistake. He forgot to distribute the negative sign
Morgan forgot to distribute the negative sign to two of the terms 2t and 2 inside second parenthesis
Try the last one; it doesn't mention anything foreign.