Answer:
15% markdown
Step-by-step explanation:
In order to find the markdown, take the lowered price and place it in a fraction as the numerator, and the initial price as the denominator. This looks like:

with this fraction, we're going to multiply it by 100, with an equation looking like this,
×
once we multiply(typically using a calculator, though manually is possible of course) we get 85.
In order to find the markdown price however, we need to subtract 85 from 100, getting 15. This is the markdown price, because it's the percentage of the initial whole that the price went down by. Can check by finding 15% of 975, which is 828.75
Two fractions where the LCD between them is 20 can be 7/20 and 20/40.
I chose these 2 fractions because 7/20 cannot be reduced anymore, but 15/40 can be reduced into 10/20.
Answer:
b
Step-by-step explanation:
you do it like this add the like terms to get your awnser
Answer:
predicted: 15.7
residual: 1.3
Step-by-step explanation:
In x-axis, age of the tree is represented, and in y-axis, height of the tree is represented. When the tree is 5 years, x = 5, and the predicted value is:
f(5) = 1.3(5) + 9.2 = 15.7
Residual value is computed as follows:
residual = observed - predicted
residual = 17 - 15.7 = 1.3