Q250: Write an equivalent expression. Use an
Q251: Multiply.<br>- <span class="ql-formula" data-value="-0.9 \cdot 7.11"><span
Q252: Evaluate <span class="ql-formula" data-value="-(-x)"><span class="katex"><span
Q253: Simplify.<br>- <span class="ql-formula" data-value="15+(-18)+13+(-3)+8+(-20)"><span class="katex"><span class="katex-mathml"><math
Q254: Subtract.<br>- <span class="ql-formula" data-value="-0.57-8"><span class="katex"><span class="katex-mathml"><math
Q256: Provide an appropriate response.<br>-Choose the expression
Q257: Multiply.<br>- <span class="ql-formula" data-value="\frac{1}{5} \cdot \frac{3}{4}"><span
Q258: Find an equivalent expression without parentheses.<br>-
Q259: Substitute to find the value of
Q260: Multiply.<br>- <span class="ql-formula" data-value="\frac{8}{7}(a-b+7)"><span class="katex"><span class="katex-mathml"><math