I don't know how to solve it

9514 1404 393

  a = 102°

  b = 78°

  c = f = 58°

  d = 122°

  e = 26°

Step-by-step explanation:

The usual rules apply:

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There are a couple of angles we can find right away:

  b corresponds to 78°, so has that measure

  a is supplementary to b, so is 180° -78° = 102°

  e is complementary to 64°, so is 26°

The unmarked angle between 78° and f is vertical to 44°, so we have ...

  78° +44° +f = 180°

  f = 58°

Angle c corresponds to angle f, so is 58°

Angle d is supplementary to angle c, so is 180° -58° = 122°

In summary, ...

  a = 102°

  b = 78°

  c = f = 58°

  d = 122°

  e = 26°

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p