Please help asap math watch!!

  a) 150°

  b) 30°

Step-by-step explanation:

It is easier to work the exterior angle first.

The sum of exterior angles is 360°. The exterior angle at any vertex of a regular dodecagon will be 1/12 that:

  360°/12 = 30° . . . the measure of one exterior angle

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The measure of an interior angle will be the supplement of the adjacent exterior angle.

  180° -30° = 150° . . . the measure of one interior angle

soo this can be solve by using the formula:

f = p( 1 + i)^ n

where f is the future profit

p is the initial profit

i is the percent increase

n is the number of years

a . f = 30000 ( 1.05)^n

b. f = 30000 ( 1.05)^15

f = $62,368

210/22 = 9.55

since he can't take part of a person to the game the answer is 9 people

hope this !