Question

A particular beach is eroding at a rate of 4 centimeters per year. A realtor converts this rate to millimeters per day. Which expression, when evaluated, results in the correct units and numerical value?

Answer 1

First convert 4 cms to mms  by multiplying by 10 
then divide this by  number of days in a year (365)

so R = 10*4  / 365

        =  0.109589  mm / day

Answer 2

The answer is A

Just did it on Edge!!