She can expect $31.08 money for her upcoming 300-mile road trip.
Explanation:
Given:
Kasha drove 135 miles for 5.4 gallons of gas.
For 300 mile road trip, kasha needs 'X' gallons of gas.
To find X,
Rate= miles/gas
135/5.4= 300/X
X= (300/135)/5.4
X= 2.2*5.4= 12 gallons
The cost per gallon= $2.59
The cost for 12 gallons= 12*2.59$= $31.08