The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since
the walk begins.
select all true statements about the input variable of this function.
a. distance is the input.
b. time of day is the input.
c. time since the person starts walking is the input.
d. t represents the input.
e. d represents the input.
f. the input is not measured in any particular unit.
g. the input is measured in hours.
h. for each input, there are sometimes two outputs.

C. Time since the person starts walking is the input.

D. t represents the input.

Step-by-step explanation:

The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since  the walk begins.

So, we can write d = f(t)

If the person is moving with constant speed, then the above function will be linear.

Now the true statements are  

C. Time since the person starts walking is the input.

D. t represents the input.

All the other statements are false. (Answer)

just needed some points but try socratic

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.