Which rational expression is in simplified form?
a. (x^2-x-6)/(x^2+"3x+"2)
b. (x^2+6x+8)/(x^2+2x-3)
c. (x^2-6x+9)/(x^2-2x-3)
d. (x^2+3x-4)/(x^2+x-2)

Factor the expression using gcf 9b+45

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.

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?