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What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.