Answer:
1 1/4
Step-by-step explanation:
log 27 = 1.43
log 21 = 1.32
109/75 = 1.45
100-128 = -28
Bill is closer.
Bill: 7 * 900 = 6,300
Jane: 7 * 800 = 5,600
Actual Answer: 7 * 876 = 6,132