Answer:
C. 4, D. 2, A. -1
Step-by-step explanation:
On the graph, the points at 0 are 4, 2, and -1.
The amount of the discount was $140.
Answer:
The answer is A.
Step-by-step explanation:
So we have the two equations:

To make a substitution of the second equation into the first equation, we need to isolate the <em>y </em>variable in the second equation. Thus:

Now, we can substitute this into the first equation. Therefore:

Answer:
A
Step-by-step explanation:
73+107 = 180. When the smaller of the two angles is 73 all of the smaller angles are also going to be 73 and since the angles MTS and STN are bigger angles they both have to be 107
25% 6 divided by 24 will give you the percentage of copper in the bar