The perimeter of an equilateral triangle is 45 meters. find the length of an altitude. round to the nearest tenth.

Find the total area for the regular pyramid ( follow the answer set up in the picture)

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.

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row