The half-life of po-214 is 0.001 seconds. how much of a 10g sample is left after the 0.003 seconds. also, create an exponential function to model its decay.

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters