Scooby Doo needed to buy some gas for the Mystery Machine. The gas costs $3.99 a gallon, but there was a sales tax of 8% applied to that. What would the cost be for each gallon of gas?

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.

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?