Need help as soon as possible please
A sequence is generated by an=-2n+8. What is the value of the ninth term
The answer choices is:
A. -12
B. 70
C.-10
D.17

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

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