Q122: Solve the problem.<br>-The average weight
Q123: Evaluate the polynomial.<br>- <span class="ql-formula" data-value="-\mathrm{xyz}"><span
Q124: Identify the degree of each term
Q125: If the number in the statement
Q126: Multiply mentally<br>- <span class="ql-formula" data-value="(s-7)\left(s^{2}+2 s+6\right)"><span
Q128: Provide an appropriate response.<br>- <span
Q129: Multiply.<br>- <span class="ql-formula" data-value="\left(\frac{3}{5}-10 x^{4}\right)\left(\frac{3}{5}+10 x^{4}\right)"><span
Q130: Evaluate the polynomial.<br>- <span class="ql-formula" data-value="x^{2}+y^{2}-z^{2}"><span
Q131: Multiply mentally<br>- <span class="ql-formula" data-value="\left(2 x^{3}+3\right)^{2}"><span
Q132: Multiply.<br>- <span class="ql-formula" data-value="(7 m-4 w)(7