1- Associative property of addition: E
-1+(4+9)=(-1+4)+9
2- Commutative property of multiplication: A
(-9)(0)=(0)(-9)
3- Commutative property of addition: D
-9+1=1+(-9)
4- Identity property of addition: B
-9+0=-9
5- Identity property of multiplication: F
(-9)(1)=-9
6- Associative property of multiplication: C
-1(4•9)=(-1•4)9
Answer:
The height of the hill is 131ft
See explanation in the photo
Answer:
30 years
Step-by-step explanation:
2 is a factor of 30, so the LCM of 2 and 30 is 30.
Saturn and Mars will appear in the same direction in the night sky every 30 years.
The line that is most likely to have a slope of 10 is the second one down
