Answer:
The best time for him to have it is;

Explanation:
Given that Mr. Smiley wants to have a sale to draw people into the store when customer traffic is low.
The period when sales are lowest on the graph is;

The best time for him to have the sales to draw people to the store is the period when traffic is at its lowest.
So, the best time for him to have it is;
I think it’s D because they are never going to touch
4 quadrant because on a graph a + and + are 1 then a - and a + are 2 then a - and a - are 3
Notice the picture
we have, the opposite side
the angle
and we want the hypotenuse
so recall your SOH CAH TOA

which one has all that? low and behold, is Ms Sine,
so let's bother Ms Sine

make sure your calculator is in Degree mode, since the angle here is in degrees, as opposed to Radian mode
In the question, the angles proves that this triangle is an isoceles triangle.
So we can set the two sides equal:

Add

to both sides of the equation:

Divide both sides by 2:

We find that

. AC is also x, so, it is 6 too.