(1+0.30)=1.30
56 (1.3) = 72.80
The price of the pair jeans before the sale was $72.80
Your calculator says error because you cant have a square root of a negative number because there is no solution to that maybe recheck your equation and try again
Using the arrangements formula, it is found that there are 40,320 ways for these swimmers to finish.
<h3>What is the arrangements formula?</h3>
The number of possible arrangements of n elements is given by the factorial of n, that is:

In this problem, there are n = 8 swimmers, hence they can finish arranged in 8! ways, that is:

More can be learned about the arrangements formula at brainly.com/question/24648661
What do you mean I need to see the prism ??
If y = 3, then you substitute 3 into wherever it says y.
So the original:
y² - 5y + 2
becomes:
3² - 5×3 + 2.
which is:
9 - 15 + 2.
9 - 15 = -6
-6 + 2 = -4.
-4 is the answer.