The half-life of a radioactive kind of
cadmium is 14 years.
How much will be left
after 28 years, if you
start with 72 grams of it?

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Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.

Can someone tell me if this is perpendicular? !