Grace runs 6miles in 2 hours what is her speed??

3 miles/hr

Explanation:

This is a distance-rate-time problem, so we need to use the equation: d = rt, where d is the distance, r is the rate, and t is the time.

Here, the distance is 6 miles, so d = 6. The time is 2 hours, so t = 2. Plug these in to find r:

d = rt

6 = 2r

r = 6/2 = 3

Grace's speed is thus 3 miles/hr.

Hope this helps!

the answer is option a.