A rug is made by weaving 16 lb of yarn that is 60% wool with a yarn that is 15% wool. How many pounds of the yarn that is 15% wool must be used if the finished rug is to be 35% wool?

Which value is not a solution of 8x^3 – 1 = 0

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.

An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?