Table A shows the distance traveled at various speeds and Table B shows the distance traveled at various times
Table A Table B
Distance Speed Distance Time
(km) (kph) (km) (hr)
100 50 50 1
120 60 100 2
140 70 150 3
160 80 200 4

Analysis:
1. The distance d traveled by Renzo and his friends both varies directly with the speed v by which Renzo drives the car and the time the drives the car. This type of variation is (a). Mathematically we can translate this as (b)__
2. The cosi c varies directly with the amount of gasoline g and inversely with the number of person p whom the gas expense is to be divided. This kind of variation is (a) Mathematically, we we can write this as (b)​