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Questions in Grade Middle-school

[Answered] Each square on Olivia's chessboard is 11 square centimeters. A chessboard has 8 squares on each side. To the nearest tenth, what is the width of Olivia's chessboard?

[Answered] Please show all work for solving the equation: \[ 7x + 3 = 9x - 7 \]

[Answered] Could anyone please help me find: 1. \(\frac{k}{9} = 12\) 2. \(84n = 504\) 3. \(6 = \frac{m}{148}\) I need explanations.

[Answered] Canada has a population that is about 1/10 as large as the United States. If Canada's population is about 32 million, about how many people live in the United States?

[Answered] Evarado paid $1.12 for a dozen eggs. Write and solve a proportion to determine the cost of the 3 eggs Evarado needs for a recipe.

[Answered] What is the value of \( n \)? \[ 9 \times 27 + 2 \times 31 - 28 = n \]

[Answered] Solve the equation and show all work: \[ 5x - 4 = 6x + 11 \]

[Answered] Can you please show all work for solving the equation and provide the answer? 13x + 7 = 10x - 11

[Answered] Solve the expression: \((ax + b) \times (cx + d) =\)

[Answered] Solve the equation and show all work: 15x + 6 = 4x - 5