The total cost of gasoline varies directly with the number of gallons purchased. gas costs $1.77 per gallon. write a direct variation to model the total cost c for g gallons of gas.
a . c=g/1.77

b. c=1.77g

c. g=1.77c

d. c=g+1.77

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?

Which is the graph of the following inequality?