Answer:
No solutions.
Step-by-step explanation:
22 does not equal 81, so therefore no solutions.
The image of U will be (2,-1)
I would honestly say either b or d but I'm not completely sure most likely b
13,822 to one significant figure is 10,000
623 to one significant figure is 600
14 to one significant figure is 10
10,000 times 600 = 6,000,000
6,000,000/10 = 600,000
