A 400-g sample of a radioactive substance is placed in a chamber to be tested. After 3 h, g of the sample remains. Determine the half-life of this substance, to the nearest
hundredth of an hour. the half life formula is A= A0 (1\2)t/h

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3

Multiplying fractions by whole number 5 x 1/3=?

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.