Answer:
20 tests
Step-by-step explanation:
There are six different wires, and for each test the author picks three, this means that each test is a combination of three out of six wires (₆C₃) . The number of total combinations possible is given by:

20 tests are required to verify every possible pairing of three wires.
Answer:
1+1
Step-by-step explanation:
Answer:
i hope this works
Step-by-step explanation:
d=17/3
d=5.666
d=5 2/3
Answer:
$19 per hour
Step-by-step explanation:
475/25 = 19