Need help find the measures

Step-by-step explanation:

The sum of angles that make up a linear angle is 180°, so we have ...

  60 + a + 55 = 180

  a = 65 . . . . . . . . . . . . . . subtract 115

The acute angles in a right triangle are complementary, so we have ...

  b = 90 -65 = 25

Vertical angles are congruent, so ...

  c = b = 25

___

Angle d is the complement of the one marked 15, so its measure is ...

  d = 90 -15 = 75

The angle measures are ...

  a = 65°

  b = 25°

  c = 25°

  d = 75°

a = 65

b = 25

c = 25

d = 75

hope it's helpful

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6