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

Option B.

Step-by-step explanation:

The cost of each LED bulb = $6.95

It costs to change a bulb in labor = $3

Total cost on each bulb = 6.95 + 3 = $9.95

There are 100 lamps to install LED bulbs and change the bulbs.

LED bulb last an average of 5 years. over a 10-year period total bulbs will be used 2 times = 100 × 2 = 200 bulbs

Total cost for 200 bulbs in 10 years = 200 × 9.95

                                                           = $1,990

The cost per year = = $199 ≈ $200 per year

It will cost $200 per year

Option B.

were is the equation

the answer is 31.27mph