The answer is d.
150 180-30= 150
TADA
you're welcome<span />
Answer:

--- Distributive property
Step-by-step explanation:
Given
Ferns = 4
Palms = 2
Lillies = 10
Shrubs = 8
Required
Show the total cost of plants as an expression
Shorten it using the distributive property
First, represent Ferns with F; Palms with P; Lilies with L and Shrubs with S;
So, 4 Ferns = 4F
2 Palms = 2P
10 Lilies = 10L
8 Shrubs = 8S
Total Plants = Summation of the above parameters

The above expression represents the total plants bought;
Now, to apply the distributive property; we simply look for a common factor;
In this case, the common factor is 2;
So,
becomes


Step-by-step explanation:
(i)
m <em>L</em><em> </em>BOC = 2× m <em>L</em><em> </em>BAC = 2×56 = 112°
(ii)
m <em>L</em><em> </em>BCA = m <em>L</em><em> </em>BAT = 75°
m <em>L</em><em> </em>OCB = (180°-112°)/2 = 68°/2 = 34°
so, m <em>L</em><em> </em>OCA = 75°-34° = 41°
Answer:
Average rate of change = 0.29 million per year
Step-by-step explanation:
Average rate of change in the population from year 1970 to year 1900 is given by the formula,
Average rate of change = 
= 
= 
= 0.29 million per year
Therefore, average rate of change in the population from 1970 to 1990 will be 0.29 million per year.
C
You're still solving the same problem and if you solved it correctly, both solutions would be the same.