Answer:
18
Step-by-step explanation:
Since it is evaluating, all you have to do is replace the b's that you see with 9s
2b for b=9
2(9)
your answer is: 2(9) = 18
3
Slope = y2- y1/ x2- x1
= 4 - (-2) / 3 -1
= 4+2/ 2
=6/2 = 3
Check the picture below.
2.1
144/100=1.44
it is done