Please help i’ll literally give brainlest if you show on a piece of paper or help! no unnecessary comments
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25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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.