Evaluate the expression according to the order of operations.72 - 3 ? 4
A. 112
B. 64
C. 37
D. 184
Answer: C
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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
Evaluate the integral.
A. - 
B. 
- 
C. 
- 
D. 
- 
Solve.m + 
= - 
A. - 
B. 
C. - 
D. - 
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds