Q18: Multiply.<br>- <span class="ql-formula" data-value="(4 x-7)(x+12)"><span class="katex"><span
Q19: Multiply.<br>- <span class="ql-formula" data-value="\left(3 y^{6}+3 y^{4}\right)\left(4
Q20: Subtract.<br>-<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB9836/.jpg" alt=" Subtract. -
Q21: Multiply.<br>- <span class="ql-formula" data-value="-7(12 x-4)"><span class="katex"><span
Q22: Identify the terms in the polynomial.<br>-
Q24: Solve the problem.<br>-The height <span
Q25: Collect like terms.<br>- <span class="ql-formula" data-value="5
Q26: Multiply and simplify.<br>- <span class="ql-formula" data-value="a^{-8}
Q27: Multiply.<br>- <span class="ql-formula" data-value="\left(t+\frac{7}{5}\right)\left(t+\frac{7}{5}\right)"><span class="katex"><span class="katex-mathml"><math
Q28: Convert to decimal notation.<br>- <span class="ql-formula"