Answer:
(a) -6x- y = 3
(b) 3x-4y =12
(c)-2x + 5y = 10
(d) x + 2y = 4
(e) 8x- 4y = 3
(f) 4x + 5y = -6
Step-by-step explanation:y<30 and x<15
140°
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The median dr smith is 15
Step-by-step explanation: