Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 40 watches
B. 25 watches
C. 36 watches
D. 50 watches
Answer: C
Mathematics
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Provide an appropriate response. If the graphs of a system of equations consist of a circle and a line, which of the following is NOT a possible solution?
A. no solution B. two points C. many solutions D. one point
Mathematics
Solve.10 = x - 17
A. 7 B. -27 C. -7 D. 27
Mathematics
Find the unknown value.$624 simple interest is paid when $2600 is borrowed for 6 years. Find the simple interest rate.
A. 5% B. 3% C. 4% D. 4.5%
Mathematics
Solve the problem.A wicker basket has a circular rim with a diameter of 11 in. How many inches of ribbon are needed to go once around the rim?(Use 3.14 for ? .)
A. 69.08 in. B. 32.54 in. C. 34.54 in. D. 121 in.
Mathematics