The answer to the question is -8 2/3
2r=1.7+3.1. soooo 2r=4.8 divided both sides by 2 soo r= 2.40
<h3>The value of A will be -3x^2 </h3>
By observing the table it can be concluded that the value of A must be equal to 3x × (-x)
So, the value will be -3x^2