The base of the great pyramid covers an area of 13 acres. an acre is 4840 yards. if base of the pyramid is the square, what is the length of each side of the base.
a. about 1000 yards
b. about 22 yards
c. about 250 yards
d. about 1,400 yards

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

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.

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297