Solve.
- 
= 
A. 21
B. 42
C. -21
D. 38
Answer: A
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Match the given equation with one of the graphs.x2 + y2 - 4x - 14y = -49
A. 
B. 
C. 
D. 
Solve the problem.The sales tax rate in one state is 6.75%. How much tax will be charged on a purchase of 8 chairs at $60 a piece? Round your answer to the nearest cent.
A. $324.00 B. $64.05 C. $4.05 D. $32.40
For the given functions f(x) and g(x), find (f ? g)(x) or 
(x) as indicated.f(x) = x2 + 8x + 12, g(x) = x + 6Find 
(x).
A. x2 + 2 B. x3 - 6 C. x + 2 D. x - 6
Solve the problem.A 3-oz serving of roasted, skinless chicken breast contains 140 calories, 27 grams of protein, and 3 grams of fat. A broccoli spear contains 50 calories, 5 grams of protein, and 1 gram of fat. A cup of whole milk contains 150 calories, 8 grams of protein, and 8 grams of fat. The amount of calories, protein, and fat in one serving of chicken breast can be represented by the matrix 
. Find the matrices B and M for the amounts of calories, protein, and fat in a broccoli spear and a cup of whole milk, respectively, and write the matrix 
which represents
the calories, protein, and fat in 4 servings of chicken, 4 servings of broccoli, and 2 cups of whole milk.
A. 
B. 
C. 
D. 