The answer is 69.6 degrees because all of the angles of a triangle always add up to 180 degrees so adding 42 and 68.4 gets 110.4, and then subtracting that from 180 gets 69.9.
Answer:
3).

4).
If it was by 10, k = 3 by 10
k = 30
5).

Answer:
since you have a google browser type the following equation into the bar without searching for it.
Step-by-step explanation:
the instructions or search online.
Answer:
5
Step-by-step explanation:
10÷2-3 (5×0)