Q9: One printer can do a printing
Q10: The volume <span class="ql-formula" data-value="V"><span
Q11: <span class="ql-formula" data-value="y"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>y</mi></mrow><annotation encoding="application/x-tex">y</annotation></semantics></math></span><span
Q12: Solve for the specified variable<br>- <span
Q13: Find all values of the variable
Q15: Simplify the difference quotient <span
Q16: Find the missing numerator and denominator.<br>-
Q17: <span class="ql-formula" data-value="\frac{x^{2}+8 x+16}{x^{2}+11 x+28} \div \frac{x^{2}+4
Q18: The sum of a number and 6
Q19: <span class="ql-formula" data-value="\frac{x^{2}+11 x+30}{x^{2}+12 x+36} \div \frac{x^{2}+5