Perform the indicated operation or operations.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: A
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Solve.A caterer wants to use an Italian recipe for lasagna that recommends using 2.5 kg of shredded zucchini for 12 guests. However, in his area, shredded zucchini is only sold by the pound. If 210 guests are expected, how many pounds of zucchini should the caterer purchase. (Round to the nearest pound.)
A. 20 pounds B. 96 pounds C. 19 pounds D. 98 pounds
Solve the problem.Fill in the missing blanks of this addition problem.
A. (a) 2, (b) 6, (c) 5, (d) 6 B. (a) 1, (b) 6, (c) 4, (d) 4 C. (a) 3, (b) 8, (c) 6, (d) 6 D. (a) 2, (b) 7, (c) 5, (d) 5
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.y = 15 - 2x2x + y = 19
A. {(6, 9)}
B. {(3, 13)}
C. {(x, y) 
}
D. ?
Find the unknown in each percent question.What is 10% of 500?
A. 0.5 B. 5 C. 500 D. 50