Let G= { a∈ ℚ||| ≥ 1} ∪ {0}. Is a subgroup of (ℚ, +)? Explain

A25-inch wide drum is used in a marching band. what area does the top of the drum cover? round to the nearest hundredth. (use 3.14 for pi.)

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8