The answer is -1. This is because you can plug in the negative values to see which ones work.
Answer:

Step-by-step explanation:

No it would be 5 because 25 divided by 5 is 5
Well standard form is Ax+By=C, so just move the -7x to the front so -7x+47=16
6 yards is the answer
144π= πr^2*4 (formula)
the pi’s cancel out
divide 144/4
36=r^2
square root 36 to get rid of the r squared
r= 6 yd