100 POINTS AND BRAINLIEST!! PRE CALC! Solve cos x = cos 2x on the domain 0 < x ≤ 2π.

a. 2π/3, 4π/3, 2π
b. π/3, 5π/3, 2π
c. 0, π/3, 5π/3
d. 0, 2π/3, 4π/3

Please explain your answer :)

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?