Answer:
B) 
Step-by-step explanation:
−x + 3 = 2x - 3
-2x - 2x
______________
−3x + 3 = −3
- 3 - 3
____________
−3x = −6
___ ___
−3 −3
[Plug this back into both equations above to get the y-coordinate of 1]; 
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Answer:
16,244.55
Step-by-step explanation:
Original cost of piano = 19,100
19% off on 19,100 = 0.19*19100 = 3,629
Selling cost = 19100 - 3629 = 15471
Sales tax = 5% =0.05
Amount of sales tax = 0.05*15471 = 773.55
Total selling cost of piano = Selling cost + Amount of sales tax = 15471 + 773.55 = 16,244.55
Current balance - 12 months a year times the monthly fee
=75-12(12.50)
=75-150
=-75
She will have negative $75 so she will be below zero.
Answer:
(i) Lowest Temperature: Warsaw
Highest Temperature: Cairo
(ii) 27.1 + 35.2 = 62.3°C