You need to make your question more readable before anyone can answer it
He can make 25 cushions
20 divided by 4/5
It is a logarithmic curve
Note that log6 of 1 = 0 and log6 of 6 = 1 ( because 6^1 = 6) and the graph passes through these 2 points so the answer is the first choice.
2x-7=9
Add 7 to both sides
2x=16
Divide both sides by 2
x=8
Final answer: The number is 8
7 plus 2 = 9. 9 over 9 reduce leaves 6 answer is 6