This way Sally travels 12+9=21 kilometers.
If there was a direct way she could go to work, that way would have been 15 km (because her way to work forms a right-angled triangle).
Therefore her journey would be 21-15=6 km shorter. Choice A.
Answer:
4
Step-by-step explanation:
The relation defined by f includes (4, 5). Then the inverse relation will include (5, 4).

The answer: b><span><span><span>4<span> or </span></span>b</span><<span>−<span>5</span></span></span>
Answer: picture see the picture
Step-by-step explanation: