Answer:
Simplifying the expression 
we get 
Step-by-step explanation:
We need to simplify the expression
Solving:
Applying exponent rule: 
Factors of 
Factors of 
Replacing terms with factors
Using exponent rule: 
Using exponent rule: 
Now using exponent rule: 
So, simplifying the expression we get
40 students prefer vanilla. To get this answer you need to multiply 200 times 0.2 because you are trying to find 20%
So, we know the perimeter is 24 cm. and the top part is the left part, (x) + 2, but remember, we need to have it be a number that, multiplied by 2, is 24. So, using this formula, the length, (top / bottom) is 7, and x = 5. Because 5 + 5 = 10, and when length is +2, it adds up to 14. 10 + 14 = 24. So, length is 7, width, (left, right) is 5.
If a coral reef grows at a steady rate every week, then to find how much it grows in 12 weeks, we need to multiply the growth rate by 12 weeks. Also, since we want our answer in centimeters, we can change the growth rate to centimeters. 0.15m = 15cm
15cm * 12 = 180cm
The coral reef will grow 180cm in 12 weeks.
