Answer:

Step-by-step explanation:
Tip: When
,
is also true.
| <em>Original equation</em>
| <em>Use tip</em>
#6 is incorrect
it's 6 7/8
#7 is correct
Number one is a square number two is quadrillateral
Answer:
The possible number of goats is 6 and the possible number of chicken is 24
Step-by-step explanation:
Let
chicken=c
Goat=g
the number of chickens could be four times the number of goats
c=4g
Total number of animals=30
c+g=30
Recall, c=4g
So,
c+g=30
4g+g=30
5g=30
Divide both sides by 5
5g/5=30/5
g=6
Recall,
c+g=30
c+6=30
c=30-6
=24
c=24
The possible number of goats is 6 and the possible number of chicken is 24 making a total of 30 animals
Answer: -3y+12
Step-by-step explanation: