Which of these is not equivalent to:

1/2 logy 64 + logo 20 - logo40

a. 2long 4
b

b. long 3 + long 2
b b

c. log 4
b

d. log 4 - log 8
b b

Show the procedure please.

Only c) log4 is equivalent, others are not

Step-by-step explanation:

½log64 + log20 - log40

log(64^½) + log(20/40)

log8 + log(½)

log4

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers