Solve the following system of equations for all three variables. -4x – y + 9z = 9
4x + 8y = 72 =-8
- 4x – 4y + 5z= -4

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

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.

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect