Multiply the expressions.(z - 15)2

A. z + 225
B. z2 - 30z + 225
C. z2 + 225
D. 225z2 - 30z + 225


Answer: B

Mathematics

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Solve the problem.When students at State University held a food drive for the needy, 192 cans of food were collected on the first day of the drive, 96 the second day, 48 the third day, and so on. Find the total number of cans collected the first five days.

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