Answer:
Slope = -3/4
y-intercept = 2
Step-by-step explanation:

2a + 3b = 6 --> Equation 1
5a + 2b = 4 --> Equation 2
Equation 1 * 5 --> 10a + 15b = 30
Equation 2 * 2 --> 10a + 4b = 8
Equation 1 - Equation 2 --> 11b = 22 --> b = 2
Sub b=2 in Equation 1 (or 2, either works):
2a + 3b = 6
2a + 3(2) = 6
2a + 6 = 6
2a = 0
a = 0
b = 2, a = 0
I think it’s B and C. They are the same distance away from 0 but, they are on different sides. Therefore, they are opposites.
Three different dimensions To answer your question are:
200 pixels by 48 pixels
300 pixels by 72 pixels
400 pixels by 96 pixels
Yes! The lengths of each side must be less than the sum of the other two lengths. It looks like this:
4+4>7
7+4>4
4+7>4