Answer:
40mm.
there are 10 mm. in a cm, so if there are 4 cm, then there are 40 mm.
Hope this helps :)
Answer:
5 gifts
Step-by-step explanation:
20 + 5 = 25
25/5 = 5
Answer:
Your answers would be:
x = 10 and x = -8
Step-by-step explanation:
Solve for the zeros:
x² - 2x - 78 = 2
Subtract both sides by 2.
x² - 2x - 80 = 0
Use the quadratic formula: 
a = 1
b = -2
c = -80
Plug in and solve:

Solve for +:

Solve for -:

Answer:
3=140°
Step-by-step explanation:
The answer to that, very long equation, is:
219,999,98