Sandy pays for piano lessons. she pays $120 for 4 lessons. how much does she pay for eight piano lessons?

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.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

You use technology ans find a sum of 6.712e-8. write this sum in standard form