Mathematics, 14.07.2019 19:30 kromaug1517
You can upgrade lighting at your factory to led bulbs that cost $6.95 each and last an average of 5 years. it costs $3 in labor to change a bulb. over a 10-year period, about how much will it cost per year to install led bulbs in 100 lamps and change the bulbs when they burn out? a $140 b $200 c $440 d $700 e $2,000
Answers: 1
= $199 ≈ $200 per year
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