A- 1; solution is extraneous

B- 1; solution is not extraneous

C- 3; solution is extraneous

D- 3; solution is not extraneous

The number of tickets for sale at $28 should be

The number of tickets for sale at $40 should be ]]>

5y = 3x+15

6x = 10y– 30

A. (5,6)

B. (–15, 12)

C. (0,3)

D. (-10,-3) ]]>