Step 1: remove parentheses
1-7+2.5
step 2:simplify 1-7 to -6
-6+2.5
step 3 :simplify
-3.5
the answer is -3.5
It's a 3rd degree polynomial judging by the shape. Use the 3 factored zeros of x=-1,0,2 to get x(x+1)(x-2)
multiply this out to get

I plotted it too
8 home theaters are sold for each $ 500 spent on advertising
Advertising ($) 1,000 - $ 2,000 - $ 3,000
Home Theaters 16 - 32 - 48
16 home theaters are sold when the amount on advertising is $ 1,000
32 home theaters are sold when the amount on advertising is $ 2,000
48 home theaters are sold when the amount on advertising is $ 3,000
X would = The number of home theaters that are sold when the amout of advertising is $500
16/1,000 = x/500
1,000x = 500 *16
1,000x = 8,000
x = 8,000/1,000
X=8
Answer:
D) If Jack drives 200 miles, it will cost anywhere between $30 and $42
Step-by-step explanation:
The cost is said to be a range of possibilities. The first three answer choices seem to assume the cost is at one extreme or the other. They incorrectly interpret the statement of cost.