The heavy line means the values on this part are in the solution set. . The open circle means that this value ( - 3) is NOT included in the solution set.
So the answer is x > -3.
Answer:
3/4 of a foot will cost $2.25.
Step-by-step explanation:
This question is solved by rule of three, due to proportions.
One foot of lace costs 3 dollars. How much is 3/4 of a foot going to cost?
1 foot - 3 dollars
3/4 foot - x dollars
![x = 3 \times \frac{3}{4} = \frac{9}{4} = 2.25](https://tex.z-dn.net/?f=x%20%3D%203%20%5Ctimes%20%5Cfrac%7B3%7D%7B4%7D%20%3D%20%5Cfrac%7B9%7D%7B4%7D%20%3D%202.25)
So
3/4 of a foot will cost $2.25.
Answer:
1.2 + 2.3
Step-by-step explanation: