The answer would be 960 inches
i hoped this helped
Answer:
1107.6
Step-by-step explanation:
1420x.22 =312.4
1420-312.4=1107.6

Explanation:
Since we have given that
There are 6 gray keys for every 11 black keys .
So, the ratio will be 6:11
Let the number of gray keys be 6x
Let the number of black keys be 11x
Now, according to question,

so,
