Solve.-3x = 9
A. x = 12
B. x = 1
C. x = -3
D. x = -12
Answer: C
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Solve for x, where x is a real number.3?x = 243
A. 5
B. 
C. ?5
D. ?6
Solve the problem.The weight of a body above the surface of the earth is inversely proportional to the square of its distance from the water of the earth. What is the effect on the weight when the distance is multiplied by 3?
A. The weight is multiplied by 3. B. The weight is multiplied by 9. C. The weight is divided by 3. D. The weight is divided by 9.
Decide whether or not the ordered pair is a solution to the equation.x + 4 = 0; (-4, 5)
A. Yes B. No
One way to weigh a very light object is to weigh a large number of the items and then divide to find the weight of one item. Before dividing, the weight of the packaging must be subtracted to find the net weight. Complete the table below. 
?
A.
| Net weight: 2080 g |
Weight of one item in milligrams: 4000 mg
B. Net weight: 2080 g
Weight of one item in grams: 4.1 g
Weight of one item in milligrams: 4121.15 mg
C. Net weight: 151.3 g
Weight of one item in grams: 0.29 g
Weight of one item in milligrams: 291 mg
D. Net weight: 2143 g
Weight of one item in grams: 2206 g
Weight of one item in milligrams: 4242.31 mg