Find the number of faces, edges and vertices of the solid.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

If the value of cos330°is√3/2 then find cos 165°.

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