Oh my gosh me me i know yhis is easy but im stupid and i dont know how to do it if you answered (all of them)

I will help you on two conditions:  1) that you never again call yourself "stupid," and that you ask no more than 1 or 2 questions per post.

I'll focus on #5.  Recall that distance = rate times time:  d = r*t.

You want distance and are given rate and time:  rate 1.8 km/min; time 48 min.

I see you write "distance" next to "1.8 km;" that is not correct, because

the problem states that "the rate is 1.8 km per minute."  1.8 km is a distance; 1.8 km / min is not (it's a rate).

So, again, to find the distance traveled, mult. the rate by the elapsed time:
 
distance = (1.8 km/min)(48 min) = 86.4 km, or about 54 miles. 

The answer is c. 7 (i think) i’m almost sure though