Answer:
-7
Step-by-step explanation:
Given

Required
The first difference
To do this, we simply calculate the difference between the consecutive y-values.
i.e.

So, we have:




<em>Hence, the first differences are -7 (all through)</em>
Answer:
Yes
Step-by-step explanation:
Let's solve your equation step-by-step.<span><span><span><span>5x</span><span>(2)</span></span>−<span>4x</span></span>=6</span>Step 1: Simplify both sides of the equation.<span><span><span><span>5x</span><span>(2)</span></span>−<span>4x</span></span>=6</span><span>Simplify: (Show steps)</span><span><span><span><span>10x</span>+</span>−<span>4x</span></span>=6</span><span><span>(<span><span>10x</span>+<span>−<span>4x</span></span></span>)</span>=6</span>(Combine Like Terms)<span><span>6x</span>=6</span><span><span>6x</span>=6</span>Step 2: Divide both sides by 6.<span><span><span><span><span>6x</span>6</span></span></span>=<span><span><span>66</span></span></span></span><span>x=1</span>Answer:<span>x=<span>1</span></span>
He would need to sell rougly 15 packages per week.