Regroup terms:
y - 2/9 ≤ 5/9
Add 2/9 to both sides:
y ≤ 5/9 + 2/9
Simplify 5/9 + 2/9 to 7/9:
y ≤ 7/9
16 songs for $ 20.....20/16 = $ 1.25 per song
y = 20 - 1.25x <== ur equation
K=9.7-5.41
K=4.29
The value of k is 4.29. Hope this help
Given the chances of getting heads, or getting the answer correct is equivalent to 1/2 or 0.5,
He has a 1/8 chance of answering all the questions correctly.