Plz help ASAP solve for x in
1. sin x = cos 2x
2. cos 2x = sin 3x
3. sin x = cos x
thx

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.

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2