Answer:
He would paid $ 90 as a travel allowance.
Explanation:
Given,
The amount of allowance for 1 km = 75 cents,
Thus, the amount of allowance for 120 km = 120 × amount of allowance for 1 km
= 120 × 75
= 9000 cents
= $ 90
( 1 dollar = 100 cents )
Hence, he would paid $ 90 as a travel allowance.