Answer: I think it’s E and D
Explanation:
Because they lie above the plane W not on the plane.
It costs $.50 to mail a letter of that size.
All letters that are under 3.5 oz take only one stamp to ship. Since 2.7 is less, it would cost only $.50
You would move 1 over on the x axis, and 1.5 up on the y axis, 2 over, then 3 up, and so forth
You didn't really ask a question, so I'm assuming you want to know if there are any solutions to BOTH equations.
Use the first equation to substitute 4x - 1 for y in the second equation:
12x = 3(4x - 1)+7
12x = 12x - 3 + 7
12x = 12x +4
0 = 4
The last equation is FALSE, indicating the system of two equations has no solution.
