a^4+b^4=(a^2)^2+(b^2)^2
=(a^2+b^2)^2–2a^2b^2
=(a^2+b^2)^2—(√ 2ab)^2
=(a^2+√ 2ab+b^2)(a^2-√ 2ab+b^2)
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The percent markup of the sweatshirt is 60%
Here, we want to calculate the percenatge of profit made by the store
Mathematically;

From the question, we can deduce the following;
cost price is the price the store bought the sweatshirt = $12
sales price is the amount in which they sold the sweatshirt = $19.20
Thus, we proceed to substitute these values into the markup equation above;
2/4 in simplest form:
First, to find the simplest form of a fraction, you'll need to find the greatest common factor (GCF). To do this, we can list the factors of 2 and 4 and find the first common one.
Factors of 2: 1, 2
Factors of 4: 1, 2, 4
Since 2 is our first common factor, it is our GCF.
Second, we can now take our GCF (2) and divide it with our numerator and denominator. We will get a new numerator and denominator.

Answer in fraction form:

Answer in decimal form:
(7,8) because it's saying to the right of the y axis which would be the x-axis and 8 units above the x-axis which is saying that the y-axis is really 8.
Answer: 23/26
Step-by-step explanation:
Let’s say we have 3 spots, one for each of the three exchange students. It doesn’t matter who goes with who, we’re just going to choose people.
If LaQuinta is NOT one of the people chosen, then there are 25 possible people left to become tour guides. We will need to choose 3 of them, so there are (25 choose 3) = 2,300 ways.
With no restrictions, there are 26 people to choose from and 3 spots to fill. Therefore there are (26 choose 3) = 2,600 ways to fill these 3 spots with no restrictions.
The total probability is 2,300/2,600, which simplifies to 23/26.