The correct answer is B)
-3 < y ≤ 3
You can tell this by looking at the graph. The lowest that it goes is -3. You'll also note that the -3 has an open circle, which means that it isn't includes and thus needs a <.
The highest it goes it 3. You'll note that it has a closed circle, which means it is included and needs a ≤.
So.. if hmm check the picture below, the radius is half that diameter
thus

simplify that away
now.. that's how much is in the cooler in cubic feet though, not in gallons
notice, our units were in feet, thus our volume is also in feet, just cubics
so. to know how many gallons, simply divide that by 231
You will multiply all of them together to get 1/4096
Let
be the length of a leg. Using the pythagorean theorem, the hypotenuse is

So, the hypotenuse is
times as long as either leg.
For one day he eats 3/4 cup of doog foods. For 7 days he eats 5 cup and 1/4 cup of food.
1/4×3=(1×3)/4=3/4
3/4×7=(3×7)/4=21/4
21/4=5 1/4.