Answer:
x ≈ 11.47
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos55° = = ( multiply both sides by 20 )
20 × cos55° = x , then
x ≈ 11.47 ( to the nearest hundredth )
$67
45/500=×/750
x=67.50
14 is the answer of the sum
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4x - 9y = -9 x x - 3y = (5 + 9) - 6 - 9) + 9 - 5