How many 0s in a trillion?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Find the value of x that will make l ll m

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.