What fraction of a given sample of radioactive nuclide remains after four half lives?
a. half-life: 1/2 left
b. half of that, or 1/4
c. half of that, or 1/8
d. half of that, or 1/16

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90