The slope of a line refers to its steepness. When finding slope, you calculate it as rise over run, which means the change in y divided by the change in x.
Answer: we can use the folowing polynomial.
P(x) = + +
you can see that P(x1) = y1
P(x2) = y2
P(x3) = y3
this is a Lagrange polynomial.
This is what we know:
The ratio of strawberry to banana batter is 2:3.
The total amount of batter is 30 cups.
We add the ratio amount, which equals to 5, and then divide the amount of cups (30) by the ratio amount (5). This equals to 6 cups, meaning that every 'ratio number' will be equal to the value of 6 cups. Now, we multiply 6 by the amount of banana batter, which equals to 18 cups. Answer= 18 cups.
If both shirts are 25% off, then multiply 20 by .25, which is 5. That's your discount. Subtract that from 20, each shirt (with the discount on both) would be 15 dollars. Fifteen times two is 30, so she would pay 30 bucks for the shirts