Thing is, you didn't give us the choices!
Answer: Positive (but not sure)
Step-by-step explanation: Are there answers to the questions is so i could help more but if correct hope i helped :)
No . because you would then have 2/4 which is 1/2 50%
Answer:
11.95 dollars
Step-by-step explanation:
Cost of one LED bulb = 6.95 dollars
Cost of changing one bulb = 3 dollars
Life of each bulb = 5 years.
In 10 years, only one time after 5 years the bulbs would have been changed
Hence cost of 100 lamps = 695 and
cost of changing once = 500
Total cost = 1195 dollars for 11 years
Divide this by 10 years to get average cost per year
Cost of 100 lamps per year = 1195/100 = 11.95 dollars
0, and Positive infinity is the answer