Gas costs $3 per gallon, which can be modeled by the equation C = 3x, where x is the number of gallons needed and is the total cost in dollars. Your car has a 15-gallon gas tank. Draw a graph
that represents how much you might have to pay depending on the number of gallons of gas
you buy. How much will you have to pay for 7.5 gallons of gas?

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.