Answer:
It’s A
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
d-nr of ducks
g- nr of goats
2*d+4*g=260
d+g=80 /*(-2)
2d+4g=260
-2d-2g=-160
------------------
2g=100
g=100/2
g=50
Answer:
13 full bracelets
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
because it goes up constantly by 12
Answer:
100 revolts
Step-by-step explanation:
180s = 3min
150/3 is 50,
50 = 1 min
50 * 2 is 100
