9. Brian says that ABCD is a right triangle. Is he correct? Explain.

B

17 m

13.5 m

21.7 m

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.