Answer:
B. Jerry Rice is the undisputed No. 1 receiver in NFL history. No other wideout can touch the San Francisco 49ers legend's career numbers.
Step-by-step explanation:
We must build the proportion
deliveries made : deliveries due = x : 100
in fact, we must express the fraction of work done as a fraction with denominator 100.
So, we have

Trey has completed 45% of his work so far.
I believe 4 because it has to do a 360 degrees turn to be facing in the same position , 4 x 90 = 360
3 1/2 - 1 + 6 1/2= 9 feet is how far he walked