On Saturday, Jamaal drove 286 miles in 5 1/2 hours. What was Jamaal's average speed in miles per hour? (Hint: Use r = d/t)

Not sure I'll get this 100% right but I'm pretty confident.

by using r=d/t you're saying what you need (r) is got by putting distance (d) over time (t) so this equation should be as simple as doing 286/5.5 (.5 comes from the " half hour") which gives you 52 miles per hour it's already in miles per hour so you don't have to change anything else from there

5.5 into 286.

It is 52.