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Q12: Solve the equation and check.
Q78: Simplify the fraction. <span class="ql-formula"
Q80: Solve the equation and check.
Q84: How much of a 6% solution and
Q107: Add the following binary numbers and
Q139: Subtract the following binary numbers and
Q163: Use the 1's complement method to
Q196: Write the decimal number in binary form.
Q219: Find the product. <span class="ql-formula"
Q412: Perform the indicated operation and simplify.