Solve the equation for the indicated variable.
n - (7 - a) = 4a for n
A. 20a + 28
B. 12a + 28
C. 20a - 28
D. 0.75a + 1.75
Answer: B
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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 3 servings of chicken, 6 servings of broccoli, and 3 cups of whole milk.
A. 
B. 
C. 
D. 
Solve the problem.A person at the top of a 600 foot tall building drops a yellow ball. The height of the yellow ball is given by the equation src="https://sciemce.com/media/4/ppg__fgfg0519191728__f1q101g4.jpg" alt="" style="vertical-align: -4.0px;" /> where h is measured in feet and t is the number of seconds since the yellow ball was dropped. Find the time that the balls are the same distance above the ground and find this distance.
A. 4.5 sec; 276 ft
B. 6 sec; 24 ft
C. 5.5 sec; 116 ft
D. 5 sec; 200 ft
where h is measured in feet and t is the number of seconds since the yellow ball was dropped. A second person, in the same building but on a lower floor that is 
from the ground, drops a white ball 
after the yellow ball was dropped. The height of the white ball is given by the equation
Describe how the graph of the given function can be obtained by transforming the graph of the reciprocal function f(x) = 1/x.f(x) = 
A. Shift the graph of the reciprocal function left 6 units. B. Shift the graph of the reciprocal function up 6 units. C. Shift the graph of the reciprocal function down 6 units. D. Shift the graph of the reciprocal function right 6 units.
Solve the equation.
= 
+ 6
A. 4 B. 4, -4 C. -4 D. no solution