7. Find the coordinates of the ordered pair where the minimum value occurs for the equation Q = 2x + 7y +11, given these constraints:
* > -2
|--4x + 2y > -6
x + 2y <4
O (2,1)
0 (-2,- 7)
O (2, -9)
O (-2,3)

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Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?