Ahardware store sells light bulbs in different quantities. the graph shows the cost of various quantities. according to the graph, what is the cost of a single lightbulb?

step 1

find the equation of the line

where

x> numbers of light bulbs

y> the total cost in $

let

A (0,0) B (10,18)

slope m=18/10> m=1.8

step 2

with m=1.8 and the point A (0,0)

y-y1=m*(x-x1)> y=1.8x

step 3

for x=1

y=1.8*1> y=$1.8

therefore

the answer is

the cost of a single light bulb is $1.8

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)