A chemist has 50 g of the isotope gold-196 which has a half-life of one week. This means that the amount of the sample decreases by half each week. Determine the equation in the graph of its solution set to represent the amount of gold-196 over the course of several weeks. (Choices in Photo Above)

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year