Owen's truck holds 30 gallons of gasoline. The cost of filling the gas tank with respect to the gas prices is modeled by the equation T 30p where T is the total cost of filling up the tank and p?

The equation ( T = 30p ) represents the total cost ( T ) of filling Owen's truck's gas tank, where ( p ) is the price per gallon of gasoline. This means that if the price per gallon increases or decreases, the total cost to fill the tank will adjust accordingly, directly proportional to the price. For example, if the price per gallon is $3, the total cost to fill the tank would be $90 (i.e., ( 30 \times 3 )).