Answer:
36 trees were infected with the virus.
Step-by-step explanation:
Given:
Total number of trees = 90
Percentage of tree that had virus 40%
To find:
Number of tress that were infected by virus = ?
Solution:
Let the number trees that was affected by the virus be X.
then
X = 40% of 90
X = 
X = 
X= 36
The answer is B, all real number
Divided 1.68 by 2.4 = 0.7
1.53 divided by 1.8 = 0.85
0.85-0.7 = 0.15
Answer:
-7k+21
Step-by-step explanation:
<em>Distributive Property:</em>
<em> ↓</em>
<em>
</em>
<em />
<em>A=-7, B=K, and C=3</em>
<em />
<em>-7k+7*3</em>
<em />
<em>Multiply by the numbers from left to right to find the answer.</em>
<em />
<em>7*3=21</em>
<em>-7k+21 is the correct answer.</em>
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