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9/10 divide by -3/15 as a mixed number

Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59 a. 14%, 62%, 23% b. 15%, 60%, 35% c. 10%, 70%, 20% d. 11%, 62%, 27%

Use the squared identities to simplify sin^2x cos^2x