Is -13.1 + (-19) rational or irrational

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

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.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0