Triangle JKL is similar to triangle PQR which three proportions can be used to find the value of x

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.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Twelve less than a number is at most 20