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Formula
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Sin θ = opp/hyp
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Apply formula to find ∠R
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sin (R) = 5/13
R = sin⁻¹(5/23)
R = 22.62° (nearest hundredth)
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Answer: Angle R is 22.62°
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Realistically, the answer is A. The mean is around 6 because the low minimum and quartiles skew the data to the left.
Since the tax is 6.25%, make it into a decimal which is .0625 then multiply by 600 to get 37.5, then add it to the 600 and the answer is .... $637.5 Yw (:
If you are given a unit rate (ex: $0.59 per ounce) then you can multiple this by the weight of the cereal to find the cost of the entire box. Do this for both boxes, and then compare the costs.
Hope this helps. I'm not sure that I'm on the right path, but I can help you further if you provide more details.
Good luck!