Sandra walks 13 miles in 3 hours. At what unit rate does Sandra walk? A.13 miles
3 hours

B.3 hours
13 miles

c.3 miles
13 hours

D.13/3 miles
1 hour

Not sure what is asking,but if it is asking for the equation. Then it is 13/3.

Step-by-step explanation:

i think c. but don't trust it.

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb