Answer:
Option B and D is correct.
Explanation:
we are given with the following:
Distance Steve biked = 8.4 miles
Distance Rhonda biked = r
According to the Question,
Steve bikes 1.8 miles less than Rhonda biked.
So, r - 8.4 = 1.8
or r - 1.8 = 8.4
add 1.8 on both side
r - 1.8 + 1.8 = 8.4 + 1.8
r = 10.2 miles
Therefore, Option B and D is correct .i.e., To solve, find the difference that Steve and Rhonda biked; this is a subtraction problem. and Rhonda rode for 10.2 miles. The correct equation for this problem is r-1.8=8.4. Solve the problem by adding 1.8 to both sides.