Answer:
Answer Below
Step-by-step explanation:
Triangle #1
To solve this answer we need to multiply then <em>divide by 2</em>
x 
÷ 
12
Triangle #2
Now we do the same thing!
x
÷
12
Rectangle #1
<em>Now we solve for the rectangle!</em>
x 
48
Now we add all these together!
<em>The answer is D. 72 Square Units</em>
Answer:
2 hours
Step-by-step explanation:
270 = (70+65) * t
270= 135t
t = 2
It triples in size every 4 days. In 16 days it will be 3 * 3 * 3 * 3 times bigger.
3 * 3 * 3 * 3 = 81
Therefore, after 16 days, the colony will contain (81 * 150) or 12,150 microorganisms.
A number line can be used to find the difference because you can count from 28 to 34 and the number you get will be your answer.
