What is the measure in degrees, of ZA?

56°

Step-by-step explanation:

Since the sum of interior angles of a triangle always equals 180, we can set up an equation and solve for x.

40 + 2x + 3x = 180.

Solved for x  we get x = 28

Since ∠A = 2x, we sub in x and get 56.

angle efh= angle egh

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours