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Questions in Grade Middle-school

[Done] Select the simplified expression for \(8(x - 4) - 4(x - 3) + 7x\). A. \(11x + 44\) B. \(11x - 7\) C. \(11x - 44\) D. \(11x - 20\)

[Done] A hiking club has 9 members. How many ways can they choose a president, vice president, secretary, and treasurer from among the members?

[Done] If \( a > 0 \) and \( b < 0 \), then which of the following must be true? A. \( ab > 0 \) B. \( a + b < 0 \) C. \( a - b > 0 \) D. \( a + b > 0 \) E. \( b - a > 0 \)

[Done] If the score is 90% and the total is 70, what is the number correct?

[Done] If I got 68 correct on my math test and the total is 85, what is the score?

[Done] Solve for \( q \): \[ 70 - q - q - 2q = 80 \]

[Done] can someone please help ? (:

[Done] Please give three reasons why a battle might occur in a specific area.

[Done] The sum of the x- and y-intercepts of the graph of \(5x + 3y = k\) is 32.5. Find the length of the line segment joining the x- and y-intercepts.

[Done] What are the similarities between: 1. The Han and Shang Dynasties? 2. The Han and Xia Dynasties?