3(3x-1)(3x+1)
Step-by-step explanation:
27x²-3
You can factor out a 3
3(9x²-1)
Now we can use the difference of perfect squares formula
x²-y²=(x+y)(x-y) which means that 9x²-1=
(3x-1)(3x+1)
put it all together and get
The answer is in the image
The total nom of code that can be used is equal to 5+3 = 8
The solution is in the following image
30% of 420 are first year students
first year students = (30/100 )*420
=126 students
Student who are not in first year = 420-126
=294 students
tip=18% of 75.45
=18/100 * 75.45 = $13.581
Tip = $13.581
Decrease in bikes sale = 650 - 572 = 78
%Decrease = (change)/old value * 100
%Decrease in sale = 78/650 * 100 = 12%
Decrease in sale = 12%
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