Step-by-step explanation:
It would be
9+6 because 0.50 is a dollar so if u multiply by 6 and add the 9 the equation would be 9+6.......
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Cos Z = 32/40 => Z= cos-¹(32/40) =>
sin Z = sin (cos-¹(32/40)) = 3/5
The answer is = 28 …………….