Line bd is tangent to circle o at c, arch aec = 299, and ace = 93. find angle dce.

a: 32

b: 64

c: 16

d: 61

Arrange these numbers from least to greatest 3/5 5/7 2/9

We just started the introduction into circles and i have no idea how to do this.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500