To calculate the interquartile range (IQR) what do you subtract?
a) median
b) lower extreme
c) upper quartile
d) upper extreme
e) lower quartile

If a || b and e || f , what if the value of y ?

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.

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.