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Q7: Simplify the fraction. <span class="ql-formula"
Q22: Solve, using the substitution method, and
Q29: Use the formula <span class="ql-formula"
Q67: Find the volume of the rectangular solid.
Q93: Solve the formula for the given
Q105: Solve, using the substitution method, and
Q184: Solve the formula for the given
Q199: Solve the equation and check.
Q295: Find the wall thickness of the pipe
Q435: During manufacturing, the pressure in a hydraulic