The first answer and the last one
Plug in each number into their designated spots.
Example with (0,5)
0 goes into x and 5 goes into the y variable and this is the equation now:
2*0 +4*5=20
0 times 2 = 0 and 4*5=20
So that is one of the correct answers.
Repeat the process and you find that the last option is also correct.
Lol another one?
So I looked at the graphs and the only one that actually even reaches 75 is the dotted one on the left. The one in the middle obviously doesn't go anywhere and the one on the right goes to 65, not 75.
Answer:

Step-by-step explanation:
When solving for 1 variable, set the other to 0 and solve.

Answer:
I tried everything and either I'm doing it wrong or you wrote this wrong
Step-by-step explanation:
.60 is above 50 so you round up
4.60 becomes 5.00 if you round it to the nearest tenth