Kis a an integer for which 1/2^1-k, 1/8. what is the value of k? 1/2^1-k must be equal to 1/8 if i read the question right.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

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.

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?