12 feet = 4 yards.
I hope this helps!
Answer:
15.3
Step-by-step explanation:
Just multiply length and width together, as the formula states.
Slope is 3/1 (3 simplified)
Answer:
i think it's correct
Step-by-step explanation:
I'm sorry if not but I believe it to be
Answer:
D. Infinitely many solutions
Step-by-step explanation:

1.Since neither equation contains an isolated. However, we can isolate -y in the first equation by adding
to both sides.
Like this: 
ending up with 
2.Now, we can change y to a positive y. By doing so, we divide -y by the entire equation.
Like this 
Ending with 
3.Now, we can plug the expression
into the second equation as a substitute for y, and solve for x. Then, we can use x to calculate y.
Like this 
4. Since -2x+2x would cancel out and leave -30=-30. This is true because we know -30 equals -30 with no variable in sight.