Solve the problem.What is 50% of 16 minutes?
A. 16 minutes
B. 800 minutes
C. 8 minutes
D. 0.8 minutes
Answer: C
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First determine which number (x or y) is more accurate, then which is more precise.x = 0.8, y = 20
A. x, y B. y, y C. y, x D. x, x
Use the two steps for solving a linear programming problem to solve the problem.A doctor has told a sick patient to take vitamin pills. The patient needs at least 28 units of vitamin A, at least 7 units of vitamin B, and at least 20 units of vitamin C. The red vitamin pills cost 
each and contain 6 units of A, 1 unit of B, and 2 units of C. The blue vitamin pills cost 
each and contain 4 units of A, 1 unit of B, and 5 units of C. How many pills should the patient take each day to minimize costs?
A. 5 red and 2 blue B. 7 red and 0 blue C. 2 red and 5 blue D. 6 red and 1 blue
Write as a percent. Round to the nearest hundredth of a percent when necessary.
A. 25.5% B. 1000% C. 51% D. 5.1%
Solve.The sum of a student's three scores is 212. If the first is 12 points more than the second, and the sum of the first two is 32 more than twice the third, what was the first score?
A. 82 B. 48 C. 70 D. 60