i think is d
Step-by-step explanation:
I will help you ok .<span>7<span>78</span></span><span>=<span><span>71</span><span>78</span></span></span><span>=<span><span>(<span>71</span>)</span><span>(<span>87</span>)</span></span></span><span>=<span><span><span>(7)</span><span>(8)</span></span><span><span>(1)</span><span>(7)</span></span></span></span><span>=<span>567</span></span><span>=<span>8
</span></span><span>7<span>(<span>78</span>)</span></span><span>=<span><span>(<span>71</span>)</span><span>(<span>78</span>)</span></span></span><span>=<span><span><span>(7)</span><span>(7)</span></span><span><span>(1)</span><span>(8)</span></span></span></span><span>=<span>498</span></span><span>(Decimal: 6.125)
</span><span>7−<span>78</span></span><span>=<span><span>71</span>−<span>78</span></span></span><span>=<span><span>71</span>+<span><span>−7</span>8</span></span></span><span>=<span><span>568</span>+<span><span>−7</span>8</span></span></span><span>=<span><span>56+<span>−7</span></span>8</span></span><span>=<span>498</span></span><span>(Decimal: 6.125)
</span><span>7+<span>78</span></span><span>=<span><span>71</span>+<span>78</span></span></span><span>=<span><span>568</span>+<span>78</span></span></span><span>=<span><span>56+7</span>8</span></span><span>=<span>638</span></span>(Decimal: 7.875)<span>
</span>i have adding subtracting , dividing , and multiplying<span> </span> there all your anwser i hope this help<span>xx
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Here is how u solve 9, 10, 11
Answer: -35+28n
Step-by-step explanation:
-7*5=-35
-7*-4n=+28n